We have no idea what BYU would have done in the same situation. These are like the posts where people mention BYU never would have left Utah to go to a conference even though there is plenty of evidence BYU tried to join major conferences before.
I wouldn't be surprised if the PAC backs off to an 8-game schedule in-conference when the B1G deal starts. if that happens, I hope they add back BYU. But I understand what they are doing and I don't think it lacks integrity. Was there a promise broken? Does Utah hope for BYU to succeed? Why is integrity involved in this discussion. I think you are throwing around that word without understanding its meaning. The fear thing at least makes sense. The integrity statement doesn't.