Is it a bullshit stat though? it's not like you or I can go to a different dimension where all drivers are healthy, fully awake, undistracted, sober, competent, etc.
We're not
Unless their message is "if you're drunk turn on self driving" which I could get behind, I sincerely doubt current self driving is better than humans - simply because of the data they chose to compare to. If they were better than professional taxi drivers I'm sure they would tout that data widely.