AGs are elected politicians they campaign on this kind of stuff, so them being behind this particular suit doesn't legitimize it but probably the opposite.
It's worth noting that these lawsuits are based on junk and non existent science, so just because they're being sued it doesn't mean there's any merit to it. It only means that law firms, ambulance chasers, and grandstanding politicians are using some misplaced anger against Facebook et al to make a buck or raise their political profiles.
It was interesting seeing real peer reviewed science from accredited labs like LLNL and Fermi get brushed aside and almost dismissed while people were cheering on this LK-99 thing.
Not sure what to make of that but that's what I'll remember most about this debacle.