I'm pretty excited about this. I think some kids out there will really enjoy an environment like this to mess with, and maybe learn a thing or two about machine learning along the way.
Starcraft is a really fun game, and I think it's enough to engage kids a little more than something like Minecraft where there's plenty of room for some cool ML hacking, but not enough stimulation from it. Instead of just seeing blocks here or there or whatever, starcraft has hard goals that will force them to use critical thinking skills, their knowledge of the game, their own personal strategic insights, and the ML skills they accrue.
So exciting! Love the feature layer idea also, well done!