While I could be wrong, I think it could have roots in the fact that Utah is a great place to live. If you have either been raised here or just lived here for a while, a lot of people either want to stay or come back. Part of it is the pull of family, part of it is the pull of mountains, and part of it is probably a grab bag of other reasons. But I work in medicine, and I’ve seen it happen a lot that people who come here for training, tend to stay or come back if they leave. And if it’s the same for football coaches, I think this means geography trumps rivalries.
That said, I know not everyone loves living in Utah. And that’s fine with me too. Different strokes for different folks.