Elon is a master of saying something that's technically correct, but sounds like something completely different, something that people want to believe and is completely untrue. So the car has "full self-driving capability" but is not actually self driving. The "basic functionality for L5 will be done this year" but not actual self driving [0]. Autopilot branding comes from the same strategy.

[0] https://www.reuters.com/article/us-tesla-autonomous/tesla-ve...