Leads me to two possible conclusions
1) Facebook gets a free pass to ignore the law because 2bn members requires x million moderaters and that doesn't make economic sense, is hard etc.
Or
2) Facebook has to abide by the law, and since it doesn't make economic sense...Facebook closes.
Facebook obviously wants the publicity of a media company and the legal protections of a communications company. Which is obviously stupid, but that's the weird situation we're in.
The problem is a social and human one. Newspapers have traditionally handled it with editors and people and human policies. Facebook isn't inclined to explore editors and people and human policies, not because they don't scale or we don't know how to scale them (Wikipedia has scaled relatively okay, for what that is worth as an example; Newspapers have used editors and researchers for a long time), but that it's not an interesting technical problem to scale people.
Facebook even had people hired in some of these moderation roles for a while, but it was sexier for them to use essentially blackbox algorithms that turned out were easy to game by malevolent entities. Now they only seem to question "fixing" the blackboxes rather than finding solutions that use smart or trained people.