This is so epic fail for us paladin's. So what about PvP? I guess Blizzard seems to be forgetting that rogues, mages and hunters all have abilities that us Ret Paladin's should dispel, otherwise we are damn well dead. I guess it doesn't matter in arena since you will have a dedicated healer but I think the point still remains, especially if you just like doing BG's. They better put the Cleanse spell high up in the Holy tree, like 2nd tier so we can still spec into Divine Intellect and get that talent as well for PvP, along with whatever else might be useful then.
You don't even know what changes are coming yet. What if they give paladins a charge ability, or give you a sprint ability, who KNOWS what they will be doing. This is only 1 part of their overall design changes, there will be balance between the classes including arenas for classes. Blizzard has been around long enough to not make something as stupid as remove all dispels from everything except healers, then not give something back to rebalance it. You guys are seriously jumping on the QQ wagon way to early in development.
They say that this allows them to design encounters with the thought that you will have a dispel of each type in the raid no matter what, but it would make a Paladin+Priest (2 healing, 10 man) less viable. It would thus require that you have at least a Druid caster DPS or a Shaman DPS, which isn't a given.
Sounds like they really are planning to make the healer's job a lot more challenging, varied and fun. You'll have to be a lot more tactical about choosing when and where to dispel or heal instead of just spamming heals all the time. Sounds fun to me. Might even make me want to play a healer more often. :-)