Yes there have been many mishaps, a large portion caused by owners not following instructions, such as to pay attention to the road. But all those mishaps still

Yes there have been many mishaps, a large portion caused by owners not following instructions, such as to pay attention to the road. But all those mishaps still don't hold a candle to how many mishaps happen daily due to human error/negligence. And the rate of automated mishaps have steadily decreased over time as the fleet learns (unlike with humans), making amount of mishaps an invalid metric.