Then if you look at his Twitter, most responses (80%) were classy, along the lines of "Hey, do what you need to do. We definitely still hope to see you in Provo though".
But a not insubstantial portion were more along the lines of "C'mon idiot, do you not know what committed means? If you're even considering elsewhere, we don't want you and you don't deserve BYU. Either commit and don't waver or just decommit and go somewhere else"
... And a few hours later, he said he was decommitted