There can be a long wire between the (cheap) radio and the person operating it. You probably don't mind if you lose the radio or the drone. This is very differ

There can be a long wire between the (cheap) radio and the person operating it. You probably don't mind if you lose the radio or the drone. This is very different to artillery which is too expensive to lose to return fire and even more expensive if you try and make it operable remotely.