I don't like blaming any one call for a loss in basketball. There are enough plays, and chances to impact the game, as well as other missed calls, that one play isn't the difference. I'm sure there was a foul on OU that wasn't called earlier in the game, that could have resulted in 2 more Arky points.
When you turn the ball over 17 times, and let the other team shoot over 52% from the field, you had more problems than one missed call.