Yes and no. You don't just make a game so easy that everyone can just get right to the end and finish it, which is sort of what Blizzard is doing with their current and newer content. Then it's not really a game anymore. Look at any past or current, and successful, console or PC game. If the developers of any of those games had just thought, "well, if we make our game a challenge, no one will play it. So let's just make our game EZ mode and call it a day." Do you think those games would have been as successful?
There has to be a challenge. What would games like Metroid, Zelda, Halo, Doom, Diablo, and Starcraft be like if approached the same way? I don't cry that I'm not good enough to compete in a SCII tournament. If I did, people would say I need to get better at the game. And they would be right. In the same way, people need to actually learn how to play world of warcraft before they cry that they don't get to see the harder content. No one is excluded from end game content except for the people who choose to be excluded. I think that is generally the sentiment carried by the "hardcore" people complaining. It's not so much that they want to feel special. But a game should reward you for being good at it. Right now, I think the gear rewarded for LFR is too good. It needs to be at least a tier behind (ilevel-wise) the current raid. Give people some incentive to actually raid outside of LFR.
Personally, I really prefer a progression format that keeps multiple tiers of raiding relevant and viable. Perhaps they need to reduce the i-level jumps in gear between each raid, so that you don't immediately feel compelled to try and cheat your i-level to get into the most current raid. Or they need to increase the i-level more so that cheating your i-level is much much harder to accomplish. PVP gear is not helping. Regardless, LFR already makes it super easy to raid without a guild or friends, and I think a progreesion system would work flawlessly in MoP.
I also think the attunement quests would work really well in wow now, too. Before, they were a hassle, because of the travelling required, finding a group to do them with, the difficulty, etc.. But there are so many new features and improvements in the game now that they wouldn't be nearly the pain people remember. Everyone has fast flying mounts and you don't even have to be max level. LFD and LFR could be used for certain parts of a questline if needed. And Blizzard doesn't have to make them take forever or be a pain in the butt to complete.
Sometimes I feel like people look back at Vanilla or TBC with disdain for the wrong reasons. They look at the hassle it was back in the day to get geared up, attuned, etc and completely overlook that all the improvements currently would prevent the old hassle's from ever being a problem again. Raid progression would work. Everyone has easy access to fast flying mounts, gold, and LFD and LFR makes gearing up much simpler. Blizzard is definitely capable of implementing it without busting everyone's balls, but it's like they've chosen the diluted water path instead.