Why do I feel like Aizawa is in the classroom and just watching Villain Deku & Shoto's interaction? I can picture him off to the side and listening in, but looks away when V.D. finally attacks Monoma (as he wouldn't like Monoma hurting his kids, so Aizawa pretends not to see anything). Also, Nezu is probably watching from the cameras. There's got to be a reason the villain alarms didn't go off with Deku's presence.