As a holy paladin I am a not very happy with the change. In random dungeons that I did on the beta, my dealing with aoe burst damage was my biggest weakness. Holy radiance heals for well...next to nothing and costs a massive ammount of mana. So the only way to get the health of my party back up after an aoe or a pull gone wrong was popping wings, spamming holy shock to build up holy power and using light of dawn a couple times. This tactic will be a lot less useful. Am just hoping that holy radiance buff will make it worth something as currently it is not worth casting. So even though the buff itself lasts longer, it has zero usefulness for improving burst healing
Not a happy bunny, tempted to play my priest on live if it stays like that, seems priests really got the goodie bag this expansion.