I'll pass on hours and hours of fate grinding when the fate mobs dissolve in less time than it takes to apply an instant cast. And the fates themselves end about 30-60 seconds after the horde gets there. Coerthas has worn me out.

IMHO: If they are going to mimic Rift and GW2's form of dynamic content then they need to mimic the way Rift and GW2 scale them up based on zone/area population.