THIS.I think it's consumers that get confused about the performance.
Elon has always maintained that he judges self driving compared to a human. He's looking for 2-10 times better than the average human.
With average humans, we get into accidents with the slightest things. wind, rain, snow, texts on a phone, nose picking, daydreaming, french fries, etc.
It doesn't have to be perfect. It just has to be at least 2x as good as a human.
@Reeler, did you think a computer would take down the Go world champion in 2016? That's 10 years sooner than some experts thought it would happen considering the game requires creativity and even the experts can barely keep score as the game is in progress, not to mention there are more possible moves in Go than atoms in the universe.