I'd even expect their human driven statistics not actually representative or useful for comparisons. Their cars are expensive, mostly excluding young and thus often unexperienced drivers. They also don't particularly target older people, the other group with high accident rates.

Controlling for all those variables is hard and not to their benefit, thus I'd never expect their pr team to do so. But I wonder if that might even creep into their automated driving stats... e.g. by drivers taking control in dangerous situations.