To me the issue is that Tesla seems to be shooting for the moon, trying to do it all in one shot, rather than its on rails method that we have seen from other manufacturers. By on rails I mean only on very accurately mapped routes with no deviation.

I would not trust my car with my eyes closed, I do however trust it with supervision which still is a major relief from the stress of driving.

One issue that seems being dodged is, my current software and hardware allows the cars too represent stop signs, traffic lights, cones, and oddly trashcans. Guess what is missing, speed limit signs. The suspicion is that MobileEye holds the patent and either Tesla won't pay for it or MobileEye won't license it. So how you can have a self driving car that cannot recognize speed limit signs is not evident to me; road data is not complete.