Um, in those two examples where it was ridiculously not waymo's fault it was still absolutely the fault of a human driver. I'm struggling to imagine a significant amount of cases where it's ridiculously not the fault of any human driver.
Thats why he specifically called out CDL drivers, or in another part of this thread they talked about rideshare drivers. Certain segments of humans likely approach the same rates as the driverless cars.
So? The vast majority are not CDL or rideshare drivers.