I think it boils down to do you trust the car or not. I understand the skepticism. If you think the car's sensors and computer cannot be trusted as good as a person then you will probably always be skeptical of level 3 autonomy
I trust that the cars sensors can be better than a person, no doubt. I do not trust Tesla’s software development process that things are fully fleshed out before release to the public. I don’t think they do enough human factors testing and tend to release things that have known limitations, and then just use warnings buried in ever updating users manuals to deflect liability.
I work in flight test, and know how much human factors is a big safety issue. I don’t think Tesla fully takes that into account with their software designs.