I was surprised to see no PI calls against Utah outside the Vegas Bowl as well ... I could've sworn I remembered others but when I ran through the play-by-play I didn't see anything. Certainly possible I could've missed something.
The difference in the attempts (2K vs 250) is that the 2K is measuring the cumulative attempts by BYU over the 6 years against all teams except Utah, while the 250 attempts are just the attempts made in the BYU/Utah game.