Scenario 1: Assume we take the knee like we actually did. ASU gets the ball back with about a minute left and scores a TD. Then they recover an onside kick and make a field goal to send the game to OT.
Scenario 2: Assume we instead decided to kick the extra point. ASU blocks the kick and runs it back for 2 extra points. They get the ball back with about a minute left and score a TD and get the 2 pt conversion to send it to OT.
And yea, I know either decision would have resulted in a 99.9+% chance of us winning.