Why would anyone care about dungeons? They became crap in WOTLK, had a brief good moment at the start of Cata and atm they are in their worst state.
Also, I would rather have 15 TBC dungeons then what we have now.
The game has changed. The company has changed.
I think there is a generation of players (myself included) who loved running 5 mans in Vanilla and TBC.
Blizzard had simply moved away from the 5 man model and is now more focused on things like Scenarios, Garrisons, Pet Battles, LFR, etc. They include them in WoD because of the players that enjoy them, but overall it isn't Blizzard's top priority, and it hasn't been for a long time.
The game has changed. The company has changed. Not saying it is a good or bad thing... but either get over it or move on to another game.
Since 9/11 the NSA has spent at least $70,000,000,000 while lying about their own effectiveness. Even if we sweep aside the extensive lawbreaking, ethical problems, economic damage, and abuse of power, the fact remains that the NSA makes us all less secure, running useless mass surveillance, with a handful of successes in other questionably legal programs.
WoD looks sharp man, TBC was like Terminator 2, you cannot repeat it! Deal with it.
They were never hard, never required CC - it was always tank and spank. Only thing that's different now is that you can tank and spank thrash to boss. Before you did it with stopping once or twice.
Another huge problem with the modern dungeon is their use within the context of daily valor point gain. This tends towards the design of a long hallway that can be completed in 15 minutes for maximum valor per minute.
Wailing Caverns, Lower Blackrock Spire, and Dire Maul were not designed to be run over and over and over. If you wanted to do one of those, you needed to set aside at least an hour, and exploring the place was half of the reward. You certainly ended up going to these places multiple times, but not because you were desperately looking for a specific item. You went back because the place was large and difficult and your first attempt resulted in a key that let you skip the first half of the dungeon.