If I had a daughter (which I do) who was conceived while using birth control (which she was), I would not refer to her as an "accident". While technically correct, the word carries too much unintended meaning in the ears of the listener.
https://en.wikipedia.org/wiki/Controlled_flight_into_terrain
"Accidents where the aircraft is out of control at the time of impact, because of mechanical failure or pilot error, are not considered CFIT (they are known as uncontrolled flight into terrain), nor are accidents resulting from the deliberate action of the person at the controls, such as acts of terrorism or suicide by pilot."
Note that Wikipedia does use the word "accident" - because they are being technically correct.
For highway accidents, the NTSB uses such terms as "roadway departure", "collision with stopped vehicles", "collision of two school buses with subsequent rollover", "motor coach run-off-road and overturn", and "multivehicle work zone crash". All are referred to as "accidents". The NTSB uses the term "accident" even for 9/11.
The Tesla investigation hasn't shown up in the NTSB database yet. But it will.