Ultimately, I think this is going to come down to proving exactly the extent of what Meta knew, and what they decided to do about it, and how that violated various laws.

I wager there is a foot gun component to this, in which Meta has tried to preemptively, either through gestures of goodwill or public reassurance or PR, institute various think tanks, work groups, and internal studies with an intent to alleviate the public's worry.

Those studies and workgroups actually could end up demonstrating that their products and algorithms and user interfaces, indeed, caused whatever this trial accuses them of doing. And if they didn't act according to what their internal data showed, I bet this is going to be the crux of the trial.