If the cars run over people while going 30kmh because they use cameras and a bug crashed into the camera and that caused the car to go crazy, that is not acceptable, even if the cars crash "less than humans".
Self driving needs to be highly regulated by law and demand to have some bare minimum sensors, including radars, lidars, etc. Camera only self driving is beyond stupid. Cameras cant see in snow or dark or whatever. Anyone who has a phone knows how fucky the camera can get under specific light exposures, etc.
Noone but tesla is doing camera only "self driving" and they are only doing it in order to cut down the cost. Their older cars had more sensors than their newer cars. But Musk is living in his Bioshock uber capitalistic dream. Who cares if a few people die in the process of developing visual based self driving.