You've never charged an opposing army only to have their front line disappear only to re-appear in your midst executing all their best attacks which you cant avoid since you dont see it coming? Its pretty disorienting. Moa is kindergarden, its powerful only in very small engagements which I could care less about.
edit: really the only way moa bird is OP is in hurting epeens, which is what all the excessive crying is about. In the grand scale of the game its a garbage elite, or at least very situational ...you need the enemy to use their elite and counter it so it varies in usefulness, you cant just pop it and get full mileage.
Off topic: The phrase is 'I couldn't care less.' If you could care less about something then it still matters. Sick of seeing all these illiterate people misusing the phrase. I see it so often it drives me mad.
On topic: Mesmers have the best elites in game bar none. Seriously.