Both are true, but one doesn't influence or cause the other.
Similarly, Bronco did go do baptisms in Boise when he was the Virginia coach, but that's no reason for BYU fans to appreciate him or applaud him.
That doesn't mean he doesn't deserve it for other reasons, but his actions as HC of a team across the country while playing a different team have nothing to do with our applause. It's his history at BYU that leads us to applaud him.