I feel like driver assist is a better representation of what this feature is.
Gps autopilot on sail boats has been around for a long time now(not talking about windvane selfsteering) and it will keep course via the rudder, but if the wind changes it won’t shift the sails so you still have to keep watch and either change the sails, or change course to follow the wind.
If you don’t pay attention and the wind changes the sails start flapping and shit can get messy.
The point is that while car autopilot does match the definition of nautical autopilot and how it funtions(it needs human oversight) I would never expect someone who’s never gone sailing with an autopilot device being used to know how it works and that someone needs to watch it and why. It’s niche knowledge and kinda foolish to expect people to just know stuff like that.