I watch some of the game and will watch the replay again, but it wasn't as if they schematically started using different linemen technique, ran some sort of a new hybrid zone/man scheme, ran more stunts, or anything else.
It looked like the same defensive scheme that was used when byu played utah... so... what's there to be upset about? He's right. I'm going to chalk this up to just rivalry smack. *shrug*