A review of four hot issues from the Seattle Seahawks' 34-22 win against the Arizona Cardinals:

After missing two games, tight end Zach Miller returned to the Seahawks lineup in grand fashion -- scoring a touchdown Thursday night in Arizona. Kevin C. Cox/Getty Images

Dominant defense: The headline stat was a season-high seven sacks, but the Seahawks defense was stellar across the board. It’s truly misleading that Arizona scored 22 points. Ten of those points came after Russell Wilson was pressured and fumbled twice in the backfield deep in Seattle territory. The Cardinals did not have a drive of more than 26 yards until late in the fourth quarter after the game was decided. Arizona had only 30 yards rushing on 18 carries. The longest run of the game for the Cardinals was 6 yards. And Seattle had two interceptions, one of which would have been a pick-six if not for Brandon Browner tripping himself near the goal line.

Big return for Miller: This game was a nice homecoming for tight end Zach Miller, a Phoenix native who went to college at Arizona State. After missing the past two games with a hamstring injury, Miller returned to the starting lineup and had five receptions for 40 yards and one touchdown. Miller makes a big difference by occupying safeties and linebackers in the middle of the field and enabling the wideouts to get open more often.

Offensive line still struggling: If anything keeps the Seahawks from reaching all their goals this season, which they hope includes a trip to the Super Bowl, it will be the offensive line that holds them back. Thursday was another awful effort overall. Wilson was under enormous pressure, getting sacked three times and getting hit constantly. Seattle rushed for 135 yards, but a lot of that was incredible second effort by Marshawn Lynch, who had 91 yards and carried defenders on his back at times. The line woes will improve when tackles Breno Giacomini and Russell Okung return, but it won’t solve all the problems up front. It’s hard to justify making player changes on the line while the team is winning, but that would not be true if not for Wilson’s remarkable athleticism that enables him to avoid the rush and make something positive out of negative situations. However, Wilson can’t continue to endure this much punishment without an injury at some point.

Road warriors: Let’s put to bed a myth about the Seahawks. The theory that this team can’t get it done on the road isn’t accurate now. The Seahawks are 3-1 away from home this season. They also are 6-2 on the road since December of last season.