On the one hand, I would like to think that Church-sponsored BYU practices the same tolerance of belief that we as members would like shown to us. On the other hand, I don't think some people realize what a "privilege" it is to get a top-notch undergrad education that is highly subsidized by the tithes of faithful members of the Church.
I don't know for sure, but I think there's usually more to these stories than is being reported. BYU admits non-members, so long as they abide by the HC and rules. How is a student who decides to "become" a non-member not similarly situated? It wouldn't surprise me if, despite their narrative, they can't continue to get an eccl. endorsement because of an unwillingness to continue to be bound by the HC or other generally applicable rules. I don't know if that's the case, but I am suspicious.