Exactly this. Some people think that Tesla's autopilot is just great, better than a human driver much of the time. As a Tesla owner, I am flabbergasted by that. At best, AP drives like I do. That is, perfectly straight and between the lines down a straight road. With any curves, and sometimes just on straight roads, it drives like a high-functioning alcoholic. I can't imagine how some people drive normally where they think that qualifies as 'good driving.' Some of us are very attentive drivers -- I never look at my cell phone, I never drink and drive, I don't drive when I'm tired, I avoid driving in inclement weather or at night unless strictly necessary, I am a very defensive driver. I don't get tickets, I don't get in wrecks, and this is by design -- I take great pains to reduce my exposure to these risks.
Personally I think the old joke about how 90% of drivers think they're better than average is both true, and also just a funny joke. We see a lot of perfectly good drivers on the road, but we don't notice them ... because they're perfectly good. There's only a few lanes on any given road, though, so if 10% of drivers in near proximity are crappy drivers then it practically shuts down the road. We notice that, and assume that most drivers are crap. Wrong.
I have a Tesla and I agree that it drives somewhat poorly compared to a Human ... when there's no surprises. Handling lanes and turns just moderately well, but not great.
However it frequently notices things before I do. Lane splitting motorcycles approaching for the rear for example. Or a car in front of me slowing down, but not using the brake lights.
It also does quite well when a car brakes in front of me, especially if it's a surprising slow down like on an onramp where I'm looking over my shoulder to merge.
So while I've not had an accident of any kind in over 25 years, I do appreciate the car noticing before I do.
So while I don't let the Tesla drive autonomously, I do feel like I'm a much safer driver with the active assistance from the car and that the Tesla (even with the same sensors) will continue to improve. Not sure if they will hit full autonmous on the current hardware, they might need another revision (to add CPU and better sensors) before they drive better than most humans.
I don't disagree that at times AP has been helpful to me. The sensors do pick up on things, and if you are actively paying attention and ready to take over at a moment's notice, it is probably a net positive. Though on average, for me, things like the forward collision warning tend to be more nuisance than help. Startling, and of the half dozen times it's activated for me, once was me needing to notice that traffic ahead and suddenly stopped, the rest are things like right-turning drivers that are way out of the way but the car panics about them. Even on 'late' mode.
The technology will certainly improve, however. Probably going to be quite a while, if ever, before I let it do all the driving, though :). At least partly because I enjoy driving.
Personally I think the old joke about how 90% of drivers think they're better than average is both true, and also just a funny joke. We see a lot of perfectly good drivers on the road, but we don't notice them ... because they're perfectly good. There's only a few lanes on any given road, though, so if 10% of drivers in near proximity are crappy drivers then it practically shuts down the road. We notice that, and assume that most drivers are crap. Wrong.