> In 5 years, after someone is eventually fatally injured you'll just jump up and say "AHA! Told you Waymos are unsafe!"

That'll depend on the circumstances. If someone is killed because of a mistake a human wouldn't have made (like driving into oncoming traffic or down a light rail track) it'll be entirely their fault. Even if they do something humans sometimes do but never should like running a red light I'd argue that it makes them unsafe. To our knowledge they've only been involved in one human fatality so far but it wasn't their fault so I don't blame them for that.