Not if it includes geofencing, obviously. There might be an opportunity to alter/delete the geofence, but that would not be different in a legal sense from "chi

Not if it includes geofencing, obviously. There might be an opportunity to alter/delete the geofence, but that would not be different in a legal sense from "chipping" a moped for example. The chippability of mopeds does not make all mopeds illegal and selling properly geofenced drones with open source firmware would also be legal. Altering a drone to remove the geofencing and then flying it would be illegal though.