Very dumb but what if he claims he was only using to train an AI model, what was that ruling on copyright material being ok to training AI models on. Would this hold up in court or not?
Downloading it and making a copy on your disk are separate potentially infringing events from copying into memory and a model.
I don't know a single company where an executive would be downloading training data themselves.
The only exception would be a very small startup, which isn't the case here, or all IT, admin and engineering staff told the company they aren't doing anything illegal for Zuckerberg. That's not going to happen at Meta either.
They might be in the clear if they were solely downloading (might) but if he's also seeding then it's just copyright violations.
Rulings have said that reproduction of AI models which were trained on copyrighted material are not violating the copyright on those materials. The initial copying of those materials without paying is illegal regardless. You still have to buy or otherwise legally view a copy of the book/movie/photo to train your model on it.