Another point is, legal human operator liability or not, the agency has been alerted of 12 such incidents which could never, ever occur unless a human driver is

Another point is, legal human operator liability or not, the agency has been alerted of 12 such incidents which could never, ever occur unless a human driver is asleep, fully drunk/under the influence of drugs, some sort of fight happened in the car or was distracted from heavy sunlight to the eyes or had to dodge a hazard or animal on the road. Their way of thought is simply that if the software can't deal with what is trivial for humans, maybe a recall or better look is in order. I know, this is not trivial for software, it just looks to not technical people like something that should never happen, and if it does , they loose all the trust in it. Obviously, there are many bright engineers working at Tesla, not sure how this was deployed and how this slipped QA repeatedly. This, the authority asks Tesla, before the authority has to answer to the voters , congress and media shows.