Air combat was picked because it is the more clear cut arena for AI - no messy civilians about - think of it as an attack dog let off the leash with the order kill!
Able to pull high-G, if purposely built far smaller, or with greater range, as all the human support rims, cockpit, canopy etc are rendered obsolete - and with an AI pilot which is recomputing every millisecond and where a combat may only takes seconds which to a pilot is just a blur.....
https://magazine.uc.edu/editors_pick...res/alpha.html