That is a good point. I'm not sure if the AI hype cycle is strong enough that bragging about your less-than-lethal weapons you sell to schools being AI piloted would outweigh the obvious danger of having AI controlling less-than-lethal weapons in a school environment.
I'm just thinking from a cost perspective, they aren't going to want to pay enough people to pilot 30 drones individually even just for school hours, they're going to have one person piloting several of them at once when they deploy, and they'll be shifting focus between the various drones they control while the automation handles the ones not being manually controlled at that moment, much like the remote assistant drivers for some self-driving car companies.