As someone who was in All-State Choir here in TX this year, I'd like to share my opinion.
While yes, countertenor IS a legitimate vocal part, there are not enough true countertenors for TMEA to justify creating a countertenor category for competition. I think TMEA should allow people in such situations to sing the traditionally cross-gendered parts. Making state is a huge honor, and an amazing experience, which I think nobody who has the skills to make it should be denied, seeing how Texas' All-State organizations are consistently the best in the nation.
My one question about this specific case is whether or not he is good. Yes, he sings a rare voice part, however, I don't know whether he has the talent to make all state, or just has average talent and wants the publicity. However, as long as he doesn't audition for TII, I wish all the best for him.
"Wherever you go... I'll be right there. When you get your own private kick in the ass, just remember: it's a present from me to you."
Rose's dying words to Louise