I ran the two new EX Dungeons with a BRD last night and Rain of Death + Foes made things so yummy. I noticed more misses but not to the degree noted here so I'm gonna chalk that up to Bard support power. lol.

So, the best temporary solution? RUN WITH A BARD! =DDD

(...yeah, I know, not a viable solution for everyone, but if you have a Bard friend, make use of it!)