I think the problem here is that he "assumed" people knew. Well, you know what they say about assuming.
I still think he should have called her out, but not then, and not like that.
And actually, I'm pretty sure there's some sort of law against outing minors without the parent's permission, so I'm not even sure that that guy can air the tape anyway, so perhaps we're all good? I'll do a little research when I get home, but I have to head out right now D: