Same thought here. As far as I can tell, those who stream movies and TV online will usually end up going for a dedicated streaming player (e.g. Roku) that does a far better job at it.
As far as the disc extras go, I wonder how many people actually watch the extras that come with a DVD or Blu-ray, never mind the BD-Live features on a Blu-ray disc. I'm sure most people would be happy if all the disc contained absolutely nothing extra but the movie.