I'm sure Facebook would not be dumb enough to step in front of that train, but if they did, it would run them flat.
There's also a sort of 9/11 effect going on here. The reason the 9/11 hijackers pulled it off was that nobody expected them to use the planes as giant suicide bombs. Previous hijackings generally ended peacefully, so everybody just stayed chill. But that window of opportunity expired before they managed to crash the 4th plane. Now nobody's just going to sit quietly through a hijacking.
Similarly, I think the reason Uber and Airbnb got away with so much lawbreaking is that it was novel to have nominally respectable companies blatantly committing a wide variety of crimes. But these days, tech companies get a lot of suspicion. Regulators are not interesting in getting caught flat-footed again. And that was true 5 years ago; SF vigorously shut down a bunch of entrepreneurs that wanted to sell public parking spaces back to the public: https://www.govtech.com/transportation/SF-Demands-MonkeyPark...
Municipal regulations. Not federal and state laws with criminal penalties.
Wilfully breaching AML statute is arson to Uber’s parking tickets.