Yes we can blame content provider for using DRM. I absolutely agree that it is a technical dead-end, that it has no meaning, that it is idiot, ... I used your exact argument (if you can see it ...) 12 years ago in Thomson Multimedia. But the DRMs are there. They are used, and for video I think that they are going to stay for long. Even if the DVD protection system is dead, it is still used and will continue. So the DRM for streaming are very common and will stay.
So if we want to have linux users having access to these contents, and it becomes to be very important, we must have a legal, technical answer. As Nokia does.