With streaming content, the barrier to just copying it is already as high as pirating. You don't just have a file you can email to your friend -- you have to install and use software to capture the video and then handle the big file that results, on your phone, which is awkward. And that just gives you one movie which in isolation is barely worth anyone's attention to begin with. By the time you've figured out all that, you could have just figured out how to torrent, or even easier, find a free Chinese website that streams the pirated content to your browser just like the original service.