Very interesting stuff!
My only real concern is that a lot of what he is pointing at is very difficult to produce. He points to Skyrim as being a shining example in at least some ways, but Skyrim was a gigantic production that is well outside the means of most other studios, let alone an indie team, to emulate. For example, he says that the world should socially acknowledge the player's achievements. That along could take weeks if not months of development time.
I do tend to agree with most of it though. Mainstream MMOs have been watered-down and streamlined to make them more appealing to the masses. Many of the CRPGs of the 80's and early 90's would be completely unpalatable for a lot of gamers or would at least force them to run screaming for gameFAQs.com