Crying about it doesn't change it's effectiveness.

And really, I don't think meta cares either.

They likely are releasing this stuff, with a strict license, just so they don't have any liability, or bad publicity.

But, they likely are happy that everyone is using their stuff.

A better example would be Uber, though, a company which is now massively success despite early legal problems

Also, once again, Facebook likely wants everyone to be using their product and is unlikely to go after people.