A great step forward would be not to call it "autopilot"!
I think the term is fine. Tesla's system is already more capable, relatively speaking, than what is classically meant by an "autopilot". (See
https://en.wikipedia.org/wiki/Autopilot if unfamiliar with the term.) However, Tesla has clearly failed to communicate (quite obviously on purpose) what they have is not autonomous driving or even a prototype of it; "unofficially" overselling the feature is the problem, not the name which is really the most honest part of it IMHO.
True, but then again: what can you actually innovate where it comes to cars? Aerodynamics & safety have a single optimum shape so all cars look alike nowadays. On top of that, people gotten afraid of colors so all cars are black, grey or white. Sure, new things like touchscreens have been tried but failed. Radios got rotating knobs for the volume control back after up/down buttons where the 'hype du jour' for a few years in the early 2000s. At some point a product is as good as it gets. After all, what can you improve on a hammer?
There is more than a single dimension "objectively good" - "objectively bad". Cars appeal to emotions, and just doing something
differently enough has value in itself. Sure, it's not for the majority, and that's fine. It's good to have choices. Another point is, thinking that we are at an optimum is prone to go wrong. Experimentation is needed to see what happens.
Optimizations often get stuck in local minimum we don't understand being local, unless we do random and sometimes weird perturbations. For example: despite being micro-optimized for aerodynamics, modern cars have worse aerodynamics than 20 years ago. And I don't mean the drag coefficient, that's only half of the equation; it has been optimized from decent to even better during last 30 years. But frontal area is the other half and it has been increasing with the SUV bullshit. Even non-SUVs have been turning into half-SUVs. And as always, I like having options, so SUVs, too, but I don't like every car being SUV-ish. Tesla Model3 is a fresh exception to this trend, which is also why it gets so excellent energy consumption numbers.