I am not a human. I just hit revered last night (about 1000 rep into revered) and I am at 10900 / 12000 with black prince. And no I did not grind for even 5 seconds. Simply killing what is required for the quests
JUST GO down by the blood elves in teh mines, drop your guild rep tab and grind out the final 3k. you'll get 25-28 rep per kill. that's only 40 mobs per thousand. they spawn so fast that it's like 1 hr. grinding and you'll get revered. maybe a little more but that's still short imo.