> From what I've seen
Where? How? That's not a scientific statement.
> Loads of people think pilots simply push a button then sit back and relax as the plane automatically taxis, takes off, flies then lands itself.
Who thinks that? That seems like a hyperbole and you can't possibly know.
> Tesla chose to inherit those misconceptions.
Assuming all those above assumptions are true and assuming Tesla reached those same conclusions as the people that didn't know how airplanes work.
Just loads of speculating and attempted mind-reading...
> Autopilot -> Automatic Pilot
Autopilot is one word and has a specific definition in avionics. It keeps the altitude and heading.
If you rip the word apart and magically transform Auto to Automatic you have Automatic and Pilot, but there is no such thing as an automatic pilots, just pilots, that's why autopilot is one word.
Under that same logic automobiles should be automatic mobility devices that self-drive already.
You can't change the definition of a word to meet your argument. You also can't speculate that people probably might think the word may mean this.
Autopilot !== automatic pilot. That's not a thing.