This might be an unpopular opinion on HN but the whole “ask for forgiveness not for permission” view some take to business feels pretty bad taste to me.
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.