It's a lie when they tell you you can buy a car ready for full self driving when that will take longer than one lifetime, yes.

SpaceX promises or goals or whatever are less egrigious. It's clearly providing a useful service (stuff to orbit for less money), but nobody is giving them a bunch of money today for a ride to Mars maybe later. Same with the Boring Company; it'll become egregious if they trick a municipality into paying for something, or leave an unfinished tunnel sitting around for years and years (but longer than the Seattle tunnel, cause even non-imaginary tunnel machines have problems)