There were many more problems with CoX than just ED. IMO Jack can't design himself out of a paper bag. The massive amounts of CC possessed by NPCs which basically stop most of the classes from fighting those NPCs, and the black and white, you either stand there till the mobs kill you or you can kill all the mobs nature of the status effects have to be some of the most amatuerish design decisions ever.

If this man never goes near a game design again the world will be a better place. I hold grave doubts for Champions Online.