And, as I say, it may be overthinking it for fiction - after all, it was only a prohibition against non-canon homosexuality in characters, not against homosexual participants or anything more "real life", so no one's being hurt by it. But it's a clause in the rules that's solely motivated by the view that homosexuality is wrong and so shouldn't be depicted or endorsed (and possibly that ascribing homosexual behavior to characters who don't canonically display it is defamatory towards the characters). And I just can't really sit down and say, "Okay, that sounds fine to me, where do I sign up..."