The old rotation was beautiful because everything came off cooldown exactly when you wanted to use it again and all the DoTs lined up beautifully. That said, it was unforgiving as hell when mechanics became a thing. Kinda miss having a BiS mindset of "if it has skillspeed, don't use it" as well. I do agree that DRG AoE is very respectable though, and Doomspike in particular is incredibly useful in large pulls.