Oh, I agree. But wouldn't any existing car company also be worried about aftermarket mods to the car they sold, by people who "think they know what they are doing"? What marks Tesla's cars as significantly special or error-prone?
As important, how do you distinguish between a valid concern about the easy of making a stupid error, vs. designing the system to be more resilient to those sorts of mistakes, vs designing the system so the owner isn't able to modify the car without the manufacturer's permission?
(Eg, Massachusetts has a "Right to Repair" law, which is supposed to reduce the last case.)
