Maybe we just drive more. Maybe some new fancy vehicle is dangerous. Maybe it's just within normal statistical fluctuations.
Regarding the wolf and the husky that is a classical problem with ai, that you never know what the computer actually thinks - more pictures of wolfs would have solved that problem. And the same goes with self-driving cars - the more experience these vehicles get collectively the safer they will be.
I live in Copenhagen. Here we have robotic trains in the metro. I feel perfectly safe taking them.