There's also those other issues:
Tesla has not been counting collisions caused by the driver having to brake hard because the autopilot was about to happily slam into another vehicle/object/person? Tesla's summation of those is that they were not a failing of Autopilot, because it was not active at the moment of impact. That's ... disingenuous ... at best.
And then:
"It would have avoided this accident [by braking, steering]", and studiously saying nothing about the future, "... but it would still have been in a collision 0.42 seconds later".
For all the collisions it would have avoided, there's another subset where it would only have "delayed" the collision. But that won't be mentioned. Because it doesn't fit the narrative.