The big quote of UDS seems to be: "There is a bit of a myth that power users don't like and aren't interested in usability and ease-of-use. I think that’s nonsense."
You're actually correct, Mr. Shuttleworth. And that's why all of your power users are switching away from Unity. They want usability and ease-of-use. Which happen to be things that a rigid, non-customizable interface does not provide.
Mark, you need to start thinking of usability as User-Ability. Are you giving your users the ability to do what they want with your interface? No? Then you're not providing usability.
