Well.. If I were them, it'd be a searchable database. Like, "Search for words like 'lane' 'wrong' 'left' 'unprotected'" and see what pops up; then do a lot of grepping, see what analysis says from the associated video, and extra credit to automate everything as much as possible. Then see what the ten (or so) top contenders, by some metric look like, as checked by a human.We have speculated about this in the past. Lots of things are possible - including masking expletives automatically. We don't know what Tesla does - I have this mental image of the team being super stressed and short of people constantly. So, who knows what they have actually implemented ...
Correlation would be everything.