I really don't think BYU fans would come back with a humble "thanks for taking us back" attitude. I'm sure it would be more like "You're lucky to have us here, and if we had ANY other offer - you'd never see us again (hear that P5's? Any other offer - and I do mean ANY! It isn't too late...)
Yeah - I just see more of the same "BYU fans are arrogant @#$%" if BYU returns.