I would just like to point out that your caution applies to just about all cars currently on the roads.
(This whole issue is very important for people who do want fully autonomous cars, as Tesla et al messing up the PR will get them banned if they're not careful.)
Incidentally, Mercedes does advertise some of their cars as "self-driving":
https://electrek.files.wordpress.com/2016/07/mercedes-self-d...
I wonder why we don't hear these complaints about them.