If you actually had something like that, it could know that you watched Cosmos on Netflix and then suggest physics lecture videos from Open Courseware. It could suggest YouTube videos alongside Hollywood movies.
Which is exactly what the studios don't want, because they want you watching only their content. That is the real reason they're so obsessed with DRM -- they want creating that to be prohibited by law, because it would allow a free market for content curation instead of allowing the major studios to control it.
It's the same reason they don't like Netflix. Netflix is producing their own content and is happy to accept content from small players. It's not a fully open market but it's still too much like real competition.
But fragmentation isn't going to save them. People aren't going to subscribe to a dozen separate streaming services each with their own incompatible interface.
Hopefully they'll realize that sooner rather than later and decide that it's better to have open interfaces and protocols than let someone else (i.e. Netflix) have market power.