They have plenty of things to clean up and could have won the game by simply making one more free throw.
However, those calls were pretty obvious misses by the refs. And you can say the same thing about SDSU. They could have done more to not be in a situation at the end of OT where they needed two gifts from the officials to go to 2OT. The bottom line - it was a hard fought game by both teams and BYU played just well enough to get a W in OT if even one of the two calls is made correctly at the end. But they weren't. So if you're BYU, you learn from it and move on.
And I agree completely about the rivalry game coming up. Should be a good one.