Thanks for that.
The thing is, though the NHTSA generally doesn't make a determination on criminal or civil liability. They'll make the report about what happened and keep it to the facts, and let the courts sort it out whose at fault. they might not even actually investigate a crash unless it comes to it. It's just saying "when your car crashes, you need to tell us about it." and they kinda assume they comply.
Which, Tesla doesn't want to comply, and is one of the reasons Musk/DOGE is going after them.