This. Further, if any other company or person can be compelled to give up their private data against their will, and perform actions and expend resources and rob from their actual jobs they need to be doing, then it for damned sure shouldn't be in service to anyone who they have no relationship with. The court should be the only ones able to do that, and the government should have to pay for it (meaning you and I of course, which means they should only do it if there is some reason that benefits us all) and any private data strictly controlled and only handled managed by the court or some agreed 3rd party.
It makes no sense at all that any company can use another to defend itself like that.
As far as I can see Meta should hire researchers to assemble data about the state of the market from public data.
Or even further, really whoever is charging Meta should have to bear that burden of collecting that data to prove it.
If corporations are people then they are innocent until proven guilty. If corporations are not people then GREAT! We have a lot of old cases I would love to see unwound that hinged on that ridiculous idea. But they can't be both at different times, and still claim to have a system that has any integrity and that we should respect.