Never mind that they killed somebody, but sure.
Presumably "Autopilot" is a reference to aircraft, and they do not fly milliseconds away from concrete. (at least not the vast majority of the time)
So if you want to be literal, then the word autopilot shouldn't give you confidence you aren't going to hit things and is not false advertising. The issue is the implicit claim that you can let an autopilot drive your car safely. But it's a fine autopilot!
I don't know exactly how they presented it to the public, but it definitely doesn't seem like a name you'd choose if you were keen to avoid having people overestimate its capabilities.
You can interpret it as a metaphor, or very literally.
It seems unreasonable to me to interpret it exactly as literally as necessary to make your argument against Tesla the strongest.
What you think of Tesla has nothing to do with whether 2+2=4. If you don't want to discuss the same thing as another person, then go do something else.
Tesla does not need any heroes with capes attempting to minimize their literally-not-figuratively-dangerous marketing. They'll do fine without it. I promise.