I am not saying life is over if you go to UVU over BYU. I am saying that "undergrad institution doesn't matter much" is a silly comment (see all those above). There are great UVU grads, but in general not on the same level.
If he looking to get a few more mins per game, it is not worth giving up a BYU degree. If he has graduated or will graduate prior to going to UVU...have fun and enjoy basketball.