People don't read manuals. People don't read instructions in the UI. That is well-established reality. People glance at a web page or ad and see the words "full self-driving" and that's what sets their expectations.
They don't apparently read pop-ups prior to driving, ends of sentences ("full self driving capable hardware"), definitions of words, hacker news comments, listen to audible warnings to keep hands on the steering wheel. At what point does a person become responsible for their own actions?