That is a completely made up bar that is impossible to test for, and can never be met.
Even Waymo have tons of reported crashes in the same document.
Self driving cars need to be better than the average human - which means less injuries and deaths. Given 100 people will be killed on the road in the US today, it’s actually not a crazy high bar to clear.
So is the bar here being a good or decent driver, or being x times worse than the average human?
I see a lot of bar moving.