Regardless, there are very much actual people within Meta that can and would be held legally liable for refusing to comply with a valid warrant, up to and including going to jail.

I agree that there are plenty to things to criticize Meta for. They could do a lot more to educate users about what privacy they do or don’t have and the legal consequences of that. They could direct more people to Messenger’s private mode, which is end-to-end encrypted. I don’t think the act of complying with a warrant is something that I would really hold against them though, because 99% of people would do the same thing.