I agree with you and I liked how you pointed out how mercy stroke is a tactical disadvantage when you need burst dps. However, that being said I don't see how having shoulder tackle in my macro would put me at a disadvantage because I use controller and if I have to run away from the boss for any reason to avoid an AOE but need to get SP or Demolish off b4 my stacks drop I can Shoulder tackle and then Press whatever in the same button.