Is it simply because BYU plays Utah next season? Or because they've played often in the past?

If the P12 sends UCLA then it will be a rematch. BYU also plays UCLA again next season. By 2016 BYU will have played UCLA six times in nine years.

BYU also plays Arizona to start next season. BYU played Cal last season. Does Cal get an out clause for that recent matchup? BYU also has future match ups with ASU, WSU and pretty much the entire P12 conference. Not sure why the Pukes would get a special denial clause.