The dog fatality might not be a human fatality but it’s still a reported fatality.

Also relevant is when Anthony Levandowski at Google / Waymo caused a freeway incident through unsafe testing: https://www.businessinsider.com/anthony-levandowski-google-s...

While at the time the DMV did not require reporting, later when Levandowski was on trial Google / Waymo hid the video of the incident when it’s existence was finally reported on.