It doesn't surprise me that there are TCU professors who would be eager to affirm O'Connor's lesbianism, but the opening paragraph in the article says that she "recanted" of being lesbian. What does his endorsement mean if she's not really a lesbian? Who knows?
I've been aware for a long while that there is a Christian vein in Sinead O'Connor's music, and wondered how deep it might have been; if it was the real thing, etc. I'm interested to see what develops.