Great story Patrick. DXHR is currently on my short list of GOTY nominees. I couldn't tell you if it will stay there once Uncharted 3, and Skyrim come out but the fact that it's within ear shot of those games is very telling of how much Eidos Montreal got right.
I think it's good when developers do this. You don't want to completely cater to gamers to the point that you sacrifice creativity, but if there's a section of your game that is universally hated, why not be able to fix that.?
Of the three that I have (Batman, inFamous, Sly Cooper 1), I'd have to say Batman: Arkham Asylum. Beating some of those challenge rooms took actual skill while my other two Platinums were more of an endurance thing.