Chelsea continue to streak away with the title, precisely because this fixture continued the trend of the majority of its meetings over the past half-decade.

Arsenal of course lost, but there was still just enough controversy about one of the key moments to argue about that, rather than looking to why this pattern keeps repeating. A Chelsea team so clearly out for revenge for September’s 3-0 defeat the Emirates didn’t even need to be that good to win 3-1 here, even if Eden Hazard’s 53rd-minute points-sealing goal was brilliant. That decisive moment also defined the game. Chelsea showed their talent, but they were greatly aided by galling Arsenal meekness. The pathetic attempts at challenges by Francis Coquelin and Laurent Koscielny were as frustrating as Theo Walcott’s dereliction of duty for the first.

It was that 13th-minute strike that set the match, and was admittedly surrounded in controversy and debate.

After Victor Moses so easily got clear of Walcott to cross for Diego Costa to hit the bar, Marcos Alonso jumped forcefully - and aggressively - to beat Hector Bellerin to the ball and head home. The wing-back’s elbow also made clear contact with the Arsenal player’s head, meaning Bellerin had to go off injured. Had the goal been disallowed and Alonso booked, it would have been understandable. Given that it took replays and slow-motion to properly spot that, and that there was still room for argument, it was equally understandable that an unsighted Martin Atkinson did not disallow it.

Debate on that will rage in a predictably dull manner, despite the unfair reality that referees do not have the benefit of the same technology as everyone watching on. It will happen.

What should happen, however, and what should be the real debate, should be over Arsenal’s response.

That should be the deep frustration about this game, not least for the fact that it happens so often, and has done for so many seasons.

Arsenal endured yet another frustrating game against top-level opposition (Getty Images)

Even if - rightly or wrongly - they were aggrieved about Alonso’s goal, they should have used such a sense of injustice to fire their reaction, to respond with the aggression required to get back at Chelsea and beat them.

It recalls Jock Stein’s famous team talk at half-time of the 1967 European Cup final, when his Celtic players were complaining about the early penalty that had given Internazionale the lead.

“If you have a grievance about the referee, there is only one bunch of people who can do anything about it: you. Go out and right it yourselves.”

Celtic did so, winning that match 2-1. Arsenal did the opposite. They collapsed, pathetically.

Chelsea got revenge for that September 3-0, but didn’t even need to be at full charge. Again, the frustration for Arsenal should be that Antonio Conte’s side did look there for the taking and a touch too complacent after going a goal ahead.

With Wenger forced to sit in the stand due to his touchline ban and forced to change his team due to absences in midfield, his impressively pragmatic 4-3-3 did initially seem to work. Arsenal did start well but, when they went behind, finished appallingly when trying to get back into it.

Gabriel should have scored a 38th-minute free header when Oxlade-Chamberlain clipped in a nice cross, Mesut Ozil should have shown much more conviction when left free in the Chelsea box moments later.

Thibaut Courtois was equal to both and it ensured that, by the end, Arsenal were nowhere near equals to Chelsea.

Courtois was equal to Arsenal's tame chances up until Giroud's late consolation goal (AFP/Getty Images)

They are 12 points clear, as was made certain when none of their players could get close to Hazard for that second goal.

Running from the halfway line, the playmaker’s movement was brilliant, but still didn’t seem quite that brilliant to so easily leave Coquelin on the ground and Laurent Koscielny turned inside out.

Chelsea vs Arsenal player ratings Show all 22 1 /22 Chelsea vs Arsenal player ratings Chelsea vs Arsenal player ratings Thibaut Courtois – 5 out of 10 Aside from letting in a late goal, it was a very straight forward day for the Belgian. AFP/Getty Images Chelsea vs Arsenal player ratings Cesar Azpilicueta – 6 out of 10 Tackled well, kept his shape well and worked relentlessly. Getty Images Chelsea vs Arsenal player ratings Gary Cahill – 6 out of 10 Led by performance today and even came close to getting his name on the scoresheet. Salvio Calabrese/UK Sports Pics Chelsea vs Arsenal player ratings David Luiz – 5 out of 10 Was wasteful with some of his clearances, but due to a lack of Arsenal attacks – he had an easy day at the back. Getty Images Chelsea vs Arsenal player ratings Victor Moses – 6 out of 10. The Nigerian powerhouse caused constant problems for the Arsenal defence when he charged forward. AFP/Getty Images Chelsea vs Arsenal player ratings Marcos Alonso – 6 out of 10 Scored the opener which crushed Arsenal’s confident start. Worked well for the remainder. Getty Images Chelsea vs Arsenal player ratings N’Golo Kante – 8 out of 10 He optimises the Chelsea side – bundles of energy, clever play and a faultless work rate. Getty Images Chelsea vs Arsenal player ratings Nemanja Matic – 7 out of 10 His partnership with Kante dominated the midfield and left Arsenal looking lost in the middle of the field. Getty Images Chelsea vs Arsenal player ratings Pedro – 7 out of 10 The playmaker and the key element to counter attack Getty Images Chelsea vs Arsenal player ratings Eden Hazard – 9 out of 10 His solo goal was an example of Hazard’s limitless ability. His running, movement, skill on the ball and positioning were world class. Arsenal FC via Getty Images Chelsea vs Arsenal player ratings Diego Costa – A real menace up top and laid on two assists. AFP/Getty Images Chelsea vs Arsenal player ratings Petr Cech – 4 out of 10 Gave Fabregas the last goal due to an individual error and looked helpless for Alonso’s first goal. Getty Images Chelsea vs Arsenal player ratings Hector Bellerin – 4 out of 10 Out-jumped for the first goal and was subsequently substituted with an injury. AFP/Getty Images Chelsea vs Arsenal player ratings Laurent Koscielny – 6 out of 10 Relentlessly cleared danger and intercepted Chelsea moves. Getty Images Chelsea vs Arsenal player ratings Shkodran Mustafi – 7 out of 10 Made a number of crucial interceptions and tackles to deny Chelsea’s relentless counter attacks. Getty Images Chelsea vs Arsenal player ratings Nacho Monreal – 3 out of 10 His poor positioning left his side exposed and allowed the Chelsea strike force to punish the Gunners. AFP/Getty Images Chelsea vs Arsenal player ratings Francis Coquelin – 5 out of 10 Should be able to dictate a game like this but instead he saw very little of the ball and made a number of reckless challenges. Getty Images Chelsea vs Arsenal player ratings Alex Oxlade-Chamberlain – 5 out of 10 Looked lost in his own position and failed to make an impact going forward. Arsenal FC via Getty Images Chelsea vs Arsenal player ratings Theo Walcott – 4 out of 10 Showed no sign of attacking prowess and should have tracked Alonso for the opening goal. Arsenal FC via Getty Images Chelsea vs Arsenal player ratings Mesut Ozil – 5 out of 10 Deliveries were good, but aside from that it was an extremely quiet display by a man of such ability. Getty Images Chelsea vs Arsenal player ratings Alex Iwobi – 5 out of 10 Looked confident in the early stages, but disappeared as the game progressed. Needed to see more of the ball. AFP/Getty Images Chelsea vs Arsenal player ratings Alexis Sanchez – 5 out of 10 The Chilean received no service from his midfield and saw very little of the ball as a result. This made it an incredibly easy afternoon for the Chelsea defence. Getty Images

They were as irrelevant to that goal as Ozil and Alexis Sanchez were to the game.

By that point, the odd moment where Courtois had to push away an Alex Iwobi header or Gary Cahill had to clear aside, Chelsea were cruising. N’Golo Kante had gone from forcefully clearing up so many Arsenal attacks to now easily surging up the pitch.

Cesc Fabregas then came on to lift the onto another level by taking advantage of a Petr Cech error to lift it over his head. Olivier Giroud did get a consolation, but there were barely even ironic celebrations.

There is nothing ironic about Arsenal by now. It’s the same story over and over and over again.

By contrast, Chelsea keep beating them, over and over and over again.

Kante and Conte embrace after another win, another step towards the title (Getty)

When that pattern threatened to change last September, Conte took drastic action, and the effects of it were clearly seen here.

Arsenal never take action. That could be seen right through this game, and right through the history of this fixture.