Machine learning models for AVs are uploaded to whole fleet of vehicles, potentially causing thousands of identical accidents.

No two humans have identical brains, so every human-caused accident is unique.

In other words: human errors do not scale at all, fortunately.

> In other words: human errors do not scale at all, fortunately.

Worldwide there were over 1.3 million road deaths in 2016. That’s a pretty big scale.

Technology, even when deliberately employed to cause death, has rarely managed to cause such carnage.

I see your point, although I would argue that you could say the same thing about human factors like intoxication. Say there's a big drinking holiday, human-driven deaths go up due to people drink driving. Self-driving cars are immune to that factor.