After thinking about the fights last night I had a look at your spec. I would suggest (with fights like that in mind) dropping Blast Wave and Dragon's Breath (Useful but Flamestike, Living Bomb and Blizzard are all the AoE you'll need) and reinvesting them in the underrated Flame Throwing - to increase your Fireball range to 41 Yards. Makes all the difference in mobile fights I assure you.
I'd also look at shuffling some points to get Playing with Fire. Personally I would drop Arcane Meditation (you should always have Replenishment in a Raid - yesterday was a rare case) and Incineration (Fireball is the primary spell cast, the others aren't worth a point for an extra 2% crit chance). This is obviously just my opinion, feel free to ignore it

I have played with my spec a lot though and have found I can live without these things.