Ah! The small print. It will be the curse of ''intelligent" vehicles.
For liability reasons, the legal team will insist on lots of small print, including explicit language saying you take liability for everything (If you don't believe me, just wait and see!).
So, either you read, and understand, every line of the Operator's Manual or you're at risk of a "gotcha" if an incident happens. But few folks read, let alone understand, every line of an Operator's Manual and no one will want to take a two-day 'understand your car' course to learn all the features. So folks will continue to be confused as to the functionalities. It won't take too many "you should have know it doesn't work that way" incidents to sour them on all that fancy functionality.
It's another reason why you can't creep up on Level 5 and why Google gave up simply incrementing functionality. At some point either the vehicle does it all (Level 5), or it's worth no more than a few understandable driver assist features.