I mean, yeah. More or less.
Compare with the music industry, where there are a good number of streaming services, and pretty much all of them offer the same selection of music, all of it.
I don't think I know of anyone who pirates music at all.
The answer is greed. They make more being vertically integrated doing their own streaming than they would make taking a cut from a third party to host the same content.
The beatings will continue until morale improves.