The problem with "Instant OFF GCD" abilities makes combat feel less rewarding.

[VahnValbosce]

This isn't turn based combat, and a GCD isn't a turn. Real time combat should be that: real time.

Um so basically what you want is to blow all your cooldowns in .5 seconds. (having your character spasm uncontrollably like having some kind of seizure during combat) I don't see how that's suppose to be realistic? Since we're somehow on the topic of "real" time combat and realism.

You choose a time to use a certain Global Cooldown between attacks and healing, it simply adds a level of thought process to this game. Like I said before, I attack, use a Non-GCD in between weapon skills, then continue with my rotation. Just explaining what the situation is like, you want this to be WoW then I'm not sure what to tell you and it's not the devs fault if ppl can't change their "I want it all right now" attitude.

EDIT: As far as micro-managing, well guess what, you have to do all that AND dodge shit during fights, so there you go. Adapt to the gameplay and win, or just call it "shitty" and quit and lose, it's everyones choice.