Talk:Episode 7 - Sphere Joint/@comment-98.214.133.11-20150907161545/@comment-397235-20150907224457

I think part of it's a matter of them being afraid of what would happen if they did. It's not the school itself that's cursed; it's that specific class. Moving the school or renaming the class didn't change things; somehow, the Calamity just knows which one 3-3 is.

Takako also mentions there's a new school administrator who isn't aware of the Calamity itself, which is partly why they put Kouichi in 3-3 in the first place; once that was done, no one was going to tell him that was a bad idea because he'd already made his decision, and it's...frowned upon in Japan to question your superiors.