Let me play the devil's advocate here: what's wrong with true opt-in DRM, particularly for streaming? Most users think of video on a streaming site as being controlled by that site. If they want their own copy (and they're not trying to cop the stream) they go to a different kind of site or are clicking the download link if there's one. From the standpoint of user expectations, it's a completely different situation from downloading MP3 files to your hard drive.

In this case, DRM is completely consensual.