Hm let me think about wotlk:Legendaries aren't very legendary if 20% of the raiding population is carrying them
all of our warriors, DKs, paladins (dps) had SM, our 2 Tanks, and even one holypally, 4 alts/twinks, 3 of them build it in PuG-raids.
AND: at the time we had 1 or two in LK HC progress and even when he goes down, now, think about 10men-Raids, the ones with ragHC wont have any benefit in current progress.