Do you guys remember the Patch 4.1 Zul'Aman and Zul'Gurub 5man dungeons?
They were considered HARD dungeons trash packs that if you didn’t kill the scout in time you would get a wave of powerful guards to challenge you.
Bosses were hard on the healers, dps had to move from abilities or they would die or be close to death.
Yes, it could be frustrating at times on last boss in Zul’Gurub,
if you had a clueless player getting targeted by the shattering jump to break the chains and this player didn’t move to the chain.
But this is what made those players beter and I must say I really enjoyed the content,
Its engaging content. You have to Defeat the boss rather then do your dummy rotation to get loot.
and it inspired teamplay with friends more. If you wanted to avoid the random newbs you queued with your friend.
I think blizzard needs to go back to the harder 5m content and set that as the standard for dungeons.