lol. if you stand still in a SD game, you die
From what I've seen, that doesn't seem necessarily true, as long as you're standing in an intelligent spot.
As for my opinion on the topic: With all the emphasis Brink will have on close-range fighting, I think ADS should be the undisputed king of long range firefights, considering fights at such ranges seem that they will be in the minority. That, coupled with the fact that the whole reason sights exist in the first place is to improve the shooter's accuracy, it just seems logical to me.
I just think that it should be balanced in a way where its necessary to utilize BOTH methods if you want to be the best. That way there's a reward for ADS users to adapt to hip firing, and vice versa.