I don't think this piece on Netflix makes clear the real point: absent a different legal regime, streaming video might be the future of how people watch rental videos generally, but it's pretty obvious that there is no successful business model for subscription streaming that isn't essentially owned by the content makers. Well, unless net neutrality goes away and the cable cos get to throw their monopoly weight around in this area.
Streaming might kill Netflix DVD-by-mail eventually, but Netflix won't fix that problem with streaming. They'll never make money there.