It's not about carrying people, it's about being able to save people. I enjoy it when healing is frantic and when I have to make split second decisions about what spell(s) to use. I liked busting out all of my many tools, and it made me feel like I did the job well when we came out the other end of it. I'm not talking about healing through complete stupid. I'm talking about being able to save us when we make a mistake.
I don't mind the notion that the Wrath model needed to be changed. And I'm not really complaining too much about the current state of classes and specs, although I do think priests, and maybe some other classes, need a bit of a touch-up here and there. It would be nice if some of the early quest gear had spirit on it. It would also be nice if our heals scaled a little better. But I can live without any of that and still enjoy the game as much as I ever had.
What I don't fully like, however, is how Blizzard decided to "fix" to the zergfest mentality. They made dps classes more interesting to play because suddenly people have to not only handle their rotations, but watch their health, their aggro, aoe, their positioning, and incoming damage. That's all great, and I enjoy that part of it very much. The other half of the "fix," however, was a fairly serious nerf to healing that forces many people to cut down on the number of the spells they use. Healers used to be the ones who could save people from some pretty dire circumstances if they were skilled enough. Now, it feels like we've become just another cog in the 5-man machine. If everyone plays well, we live. If one or more people screw up a bit, we hit the soft enrage timer built into most boss fights and the healer goes oom because there wasn't enough dps.
The result is that dps has become more interesting than it was while healing as become more boring, even if it is now harder. The healing is no longer the challenge, per se, getting the group to execute the fight perfectly is. Fights seem more gimmicky now.
I prefer a model where healing is still harder than it was before and where dps have to know what they are doing, but where a good healer can still truly shine. It's like we are all being forced to use a set rotation of sorts, when one of the reasons I decided to roll a healer was to get away from that humdrum.
It's the playstyle that sucks now.