Those probably drive new users and retain current ones.
It would be nice if media companies could stop trying to own the World and instead be content offering a good service for good compensation. When they get to that point they seem to go "well if we can force people to consume something else that they don't like as much then we can get even more customers". Bleurgh.
NBC already owns the production rights to the Office. Under agreements with the various Hollywood talent guilds, they are required to pay market value for distribution rights such as exclusive online streaming, because that money gets paid to profit participants like producers, actors, writers, etc.
However, NBC is considering rebooting or spinning off the Office with some of the original cast.