Elon keeps touting reduced accidents with AP using faulty statistics, not me. I'm personally fine with AP not reducing accidents, but for all we know it increases accident rate. No one here knows since we don't have access to the granular data that Tesla has, and so far, Tesla has not analyzed it (or not disclosed it) to the level needed for a proper analysis. I suspect the NHTSA won't be so cavalier with the data, so in 6 months to a year we might get some meaningful information.
If Tesla is not properly analyzing the accident data (and Elon's tweets point in that direction) that is incompetence since the NHTSA likely won't make the same mistake.
And please don't scoff at the possibility of increased accident rate. Both recent bad accidents (tractor trailer and hitting the barrier) occurred to drivers who might not have gotten into those accidents if it weren't for AP, and there have been other accidents stories in this forum where using (or misusing) AP caused the accident. Explanations like "but if the driver were paying attention, there would have been no accident" is not going to cut it with the NHTSA since without AP the driver WOULD have been paying attention.