Originally Posted by
HardCoder
They are probably looking at the participating in 5-mans and thinking "well if no one is doing these then let's not make any more of them."
But the reason no one is running 5-mans is that there is no meaningful gear there. You get nothing useful out of them except valor, and maybe if you queued as tank or heals, a goodie bag. As a tank, with goodie bags and instant queues, it might be worthwhile doing 5-mans. As a healer, with the short queues, it might be a nice change of pace. But as a DPS, why would you ever bother once you got to 460 ilevel?
Some of it is downright stupid. The heroic dungeon quests reward 440 ilevel gear. I've never seen dungeon quests reward gear inferior to the boss drops in the instance.