This is exactly it, IMO.
Whether you like AP or not largely comes down to how your driving style compares to the computer's. If you are a defensive driver, you won't really care for the kinds of obviously dumb situations AP will happily drive you into. Eventually it reacts, but it takes a lot longer for the sensors to notice what a human brain can easily predict is about to occur.
I found AP to be an interesting toy, but it never made driving more relaxing for me, because I had to be more aware, not less, of everything around me.
EU seem to have more stringent regulations - for example, to ensure that AI maneuvers will be less unexpected EU regulations put a hard rate limit on steering angle. Trouble with regulating at such level is that in some cases (curved roads, hazard avoidance) it makes the car less safe.
Overall, Level 2 systems, like Autopilot, are not autonomous and their performance depends in large part on drivers judgement. I think regulations need to focus on human - AI interface requirements a bit more.