Very interesting question. Certainly I’ve never heard them discuss this in any of the AI system lectures. It’s always stated as “we know humans can drive using only our eyes so we have an existence proof”.

Plus, a human could drive in a variety of conditions but there’s just so many possible scenarios the car could encounter, and humans crash too, so the real question is what is the relative performance between a human and the machine across thousands of potential or actual crashes. Kinda hard to measure.