This is my problem with the whole thing. He spots the ball and backs into the D. The official who spotted the ball in our game, ran behind the D after his "spot". Why wasn't he behind the D to begin with, instead of 15 yards behind the QB? Any play downfield, he's chasing from way behind, he's going to be far out of position.
The last article I can find on NFL.com on the subject was 5 years ago, which says the umpire should be behind the offense, except in the final 2 minutes or inside the 10 yd line, then they should be behind the front 7 of the D. Given the situation, there was no excuse for the ump to be 20 yards behind the offense. It's one area where college rules are superior, the clock stops with each first down in the final few minutes of a half.
The ump was grossly incompetent, as was the whole crew. As are most refs. Imagine you're living with a loss like the Raiders where officials just lied and pretended there was no whistle.
The Cowboys shouldn't be focused at all on the poor officiating, but the NFL should. It's a bad problem that gets worse every year.