NRL head of football Todd Greenberg said there was no plan to revert to the old system where referees would not have to make a live decision before sending a try to the video referee for a verdict.

Under NRL rules, on-field referees have to make a try or non-try decision, even if they are unsighted, before referring a decision.

"The video referees reviewed the angles provided to them, and determined that they had insufficient evidence to overturn the decision based on the vision available. After reviewing the incident and based on the circumstances, I support that decision. I spoke to [Bulldogs coach] Des Hasler after the game and I explained that point to him."

"Lead referee Matt Cecchin was in a very good position to make the live decision of try," Archer said. "His communication to the video referee was, 'I have a try, just check it wasn't lost before he grounded it'.

"The system is one that is supported by the coaches and the clubs," Greenberg said. "In this case, the referee had an opinion and used the available technology to confirm his view.

"We want the referees to be the decision makers, and we want the video referees to be part of a review process rather than decision makers. That is why the system requires the video referees to have sufficient evidence to overturn a live decision."

Greenberg is pushing to have a bunker introduced into the NRL next year to produce better and faster decisions. Hasler supported a central command centre on Friday night, saying they would have "more cameras". A decision on the bunker is expected at the end of the year.

"We are also confident that the proposed central command centre will further improve our accuracy, efficiency and consistency levels in this process," Greenberg said.

The Bulldogs were unable to recover from the momentum swing after Evans' try, finishing 38-12 losers as they crashed out of the premiership race. Evans laid on another try three minutes later with a late off-load for Roger Tuivasa-Sheck to put the game beyond doubt. Evans was adamant he scored: "I knew I got the ball down over the line," he said. "I knew it was a try, but when I was looking at the replay in slow motion, it looked a bit iffy. So I was happy it was awarded."