What happens to Utah, good or bad, matters to BYU. That's what a rival is. We compete on the field, we compete for coaches, and we compete for recruits. We even compete for fans and their dollars.
I hope Utah loses every game by 100 points so that no one will want to play there, attend a game, or spend a penny on their merch. If you don't care, gird up your loins and muster some rivalry. You are supposed to care, or you are not really a fan(atic).