LOL you clearly haven't tank in BC WoLK or Cata. Ever tank Nexus where the caster if not CC or interupt will simply take half of your hp as a tank or one shot your clottie? Or how about the part you have to extra careful not to pull extra mob when right before the 2nd boss where you have to LoS the pull coz of the caster? Ever been to Halls of Stone where if not careful pulling an extra pack will wipe the group? Or how about Stonecore after the 2nd boss try pulling the whole room and see what happens? Ever wonder when people have to kill one pack at at time and also kill that one add who will try to run other groups?
LOL I bet you only did them during time walking when it is a cakewalk and have never actually been to these dungeons when they are relevant without the level squash. Ever wonder why so many people complain at the beginning of Cata one of the boss is nicknamed the pug breaker. Yea coz is hard not what we have here. If you haven't done them when they are release then please don't say a word coz the whole time walking is such a water down version of what they are now.