I agree close burst 2 is pretty small, and it means for your Wisdom cleric, they would really need to put themselves in harms way to get any benefit. I think the power is at the power level that its encounter status demands, but perhaps a different delivery vector isnt out of order.I think they went too far with the cleric errata but the podcast is a good explanation and good effort to communicate.
I agree with the idea of cutting down massive close blasts (and I appreciate what they said about large blasts removing the need for tactical movement/placement). But I still reckon they overreacted as CB2 is trivial at high paragon/ epic large scale fights with large enemies
Why dont they make turn undead a blast rather than close burst?
Mind you, what about the Pelor channel divinity (cant remember what its called). If turn undead needed a nerf, it certainly did as well.