I agree that it probably wouldn't have made a difference in the outcome, i.e. they probably wouldn't have run another play anyway. It was more the fact that he needed to look at the sidelines to know what to do.
The official is usually looking at the QB to see if he'll call TO in that situation. Edwards should have immediately signalled it, and they could have put time back on the game clock.
Edwards had to look to the sidelines to know what to do after that play was over? Oy. What happened to this guys smarts? They could have run another play.