-TL;DR version at bottom of post-
@Poltergeist

Accessibility and difficulty are two separate things, do not confuse them. Accessibility only indicates how easy it is to get into content, difficulty indicates how hard that content is once you have that access.

In Cataclysm raid content is still not very difficult to get into. You run some heroics, spend some justice points, maybe buy a BoE or two and you're starting raid ready. And it is only gear that is a barrier to entry. All other obstacles from the past are gone.

Thus I would say that what you are complaining about it the difficulty of the current content. I personally find the current difficulty satisfactory, but I want to delve into this a bit more. I think you're right in this regard, and this is why. WoW raiding has only two difficulty settings, normal and heroic. It's very binary. Almost every other video game has 3 difficulty settings if not more. We have heroic content for hardcore raiders it's true, but what about those who are above average? Those below average (not everyone can be above average)? The game as it currently is lumps everyone that isn't a hardcore raider into the same difficulty, and that does not work for everyone. Some people want content that's a little easier, and that's fine; Blizzard should cater to that. Blizzard should also cater to those who want a challenge but can't or don't want to do heroic content. Why do we only have two difficulty modes with a huge difficulty gap between them? Why can't Blizzard make several more difficulty levels to cater to more types of raiders?

Truthfully, so far this raid content in Cataclysm has been better in my opinion then Wrath. I like having several places to play around in instead of one huge place, and I like the greater difficulty curve. But I understand that I play on a level not everyone does or can. While my raid team is not hardcore, we still want to perform well and beat all the content, even get into heroics if we can. Not everyone plays on that level. I'm not saying people are bad players and should L2P, but that people are different and the raiding game should reflect that.

-TL;DR version-
Accessibility is ability to get into content, only block is gear which isn't hard to get to be able to start raiding. Difficulty is main complaint. I like current difficulty, but argue that two difficulty settings not enough. Need more then normal and hard difficulties so more raiders can play and their skill and comfort level.