I didn't catch all of his explanation, but included discussion about how BYU was winning at line, bringing more guys into gaps, etc.
I'm sure coaches have their reasons, and they have thought about it more than fans. So it's kind of humourous how frequently it comes up as a fan complaint.
I will say, that if you go under center for a sneak and don't get it, fans complain about the execution/players but not the call. So at least some consistency.