Even the most visible academic skeptic of Waymo (Phil Koopman) had to throw in the towel and admit that they've cleared every conceivable statistical hurdle to conclusively demonstrating that they are better than humans on injuries and airbag deployments. They have moved the goalposts to aesthetic arguments, for example: if it's so safe why does it sometimes do weird stuff? But to principled systems thinkers they have already shown what needed to be shown. It's safer.