I'll take that as a no then. While I wouldn't be surprised if the school's actions are over-the-top and unnecessary, I think there's more to the story than the suggestion he made one comment by mistake. From the article you linked to:
Well that's a bit of a coincidence.
It doesn't sound like...
Not sure where what you know comes into it. Kids don't know what it means to be a man or woman, so while they might identify more as a boy or girl, I'm concerned that they can't really understand the implications of swapping from one to the other at such a young age.
It's probably easier for us to deal with that sort of choice of an adult, because we know they've gone through puberty and as an adult reached this decision with knowledge and a lot of thought. I think it's harder for us to understand if it's a child, as I wouldn't be confident a child knows...