Go loo kin the other thread at the math. For min-maxing, DRG has about a 27 GCD non-repeating rotation. The problem people are seeing as to how they can say, " DRG isn't hard. " Is because it only has 2 abilities that are stuck on the positional requirements. Granted if you don't land those 2, then you're dps drops like a rock, but all the abilities chained after don't require the positionals, just to be chained. This still requires dancing around the boss and can screw you in a high mobility fight; Not as much as it screws over monks though.
And saying DRG has the easiest off GCD abilities is laughable. The longest animations that lock you in, so if you time it right and an aoe opens up under your feet. Well too bad, dead dps.