They seek to convert them into more products. The needs of the copyright holders , who are relatively small businesses and individuals are outweighed by the needs of Meta.
Sarah wanting to watch a movie or listen to music... Too bad she doesn't have an elite team of lawyers to justify whatever she wants.
In practice Meta has the money to stretch this out forever and at most pay inconsequential settlements.
YouTube largely did the same thing, knowingly violate copyright law, stack the deck with lawyers and fix it later.