The human should always be attentive behind the wheel, autonomous driving or not. They should be just as liable as if they were driving the car themselves
If its ready to play, just release it, what's the point of a playtest if not to test it. Yeah there's the publicity too, but are we going to pretend that it can't do both.
Gen 3 Pokédex says they shoot bullets of water, ther entries note that it can punch through thick steel, and the Let's Go games compare mega blastoise's cannon to that of a tank.
I don't think this is the right audience for this.