Faceroll 4 in 3 hours?
Are people's memory that bad?
WotLK: 1 heroic each 10min. 15 in a bad pug.... This at the end of the expansion, in the beginning 1 heroic would last 40min, 30 after everyone got used to it. Very few to no wipes.
Cata: Each heroic last over an hour, a little less if you are with guildies and overgeared. With good pugs well over an hour. With a bad pug its impossible. Quite a few wipes in a PUG, little to none if with guilds.
And FYI i'm generalizing i know not all goes as this and are plenty examples other wise but generally speaking this is how normally was/is.
What I'm saying is WotLK=/=Cata. Completely!