Well, if you saw that video and it really did show a < 1 second time between the pedestrian becoming visible and being hit, then the autonomous systems don't matter at all. That accident is physically impossible to prevent in that car.
So whether or not the police understand self-driving systems is not relevant to the fundamental physics problem. The key question is how long was the ped visible.
So whether or not the police understand self-driving systems is not relevant to the fundamental physics problem. The key question is how long was the ped visible.