Well, even aside from not having to fund a nazi, it would probably result in improvements to the car (like putting back the turn signal and gear shifter stalks).
Having had a new model S as a loaner for a week a couple months back, i can honestly say the only improvement in the new models over my 2013 is range and some silly apps in the center console. Everything about driving the car was worse. FSD made driving worse, because I still had to pay full attention and keep my hands on the wheel and foot covering the brake, but now I had to anticipate what the car might do, which takes away from allowable reaction time. Too stressful. Hell, the new ones even charge at half the speed in my garage (my tesla can charge at 80A. The loaner was around 40A.)