See, I'm not sure if you know this... but most people are not Pilots.. ( disclaimer, I'm not only a programmer, but also hold an A&P and avionics license, as well as a few engine ratings ).
It is ABSOLUTELY on a manufacturer to make sure their potentially life ending feature, is not named in a way that can confuse the target audience. You know. NON PILOT car drivers.
auto means "by itself, automatic"...
Of course “Autopilot” is intended to evoke the common meaning as a marketing tool, and not the nuanced, highly technical meaning understood by pilots. Understand though, that when someone argues against that point the pedantry is just a proxy for their fanaticism, and until the fanaticism dies, the excuses will be generated de novo. You’re bringing reason and logic to an emotional fight.
Forgive me but I've never seen any plane where, once in autopilot, the pilot/s are not checking and observing the conditions of the plane and making sure everything is alright.
I want you to go on wikipedia(is that not mainstream enough) and search for the term Autopilot. Reads its ACTUAL definition and come back.please.