I'm a little surprised Meta is even bothering to fight this. I mean the argument looks farcical to me be IANAL and weirder things have happened. If they do end up losing they'll have to pay however many millions to their law firms plus whatever the in or out of court settlement end ups being.

And you just know that whatever they end up paying will be so tiny that it will just be seen as the cost of doing business. From a corporation's perspective it's always better to break the law and maybe pay a tiny fine (if you get caught and can't argue your way out of it) than it is to follow the law and miss out on profit/revenue/strategic advantage etc.