That was exactly what I was thinking when I read that write up 🙂 I ALWAYS play in bodyguard mode !
Also I modified the build somewhat, I am slightly undercap for ranged defence in my build because I took out the 6th slot in Twilight Grasp to put in an accuracy IO, since I am not level 50 yet I am not sure how the skill will hold up at higher difficulties without any accuracy, but as it is now, at level 33 it is pretty bad without accuracy bonus. Also looking at the various set bonuses there isn't that much global accuracy to compensate the lack of a dedicated slot.
I also kept the 6x frankenslot in Hell on Earth I have in the original build to keep those sweet sweet res+def auras for the pets because they make a huge difference.
What power would you replace to get Howling Twilight ? It seems like a pretty lame and situational power to take. Does the job when it's in the spotlight but globally pretty bad, no ? I actually have no qualms about using temp powers, heck most of my characters don't even have a travel power because I just use the 5000$ jetpacks, so I guess I could get rid of Fly to get HT. Will be something I will have to try out once I get there !