Really depends if you're looking for cool downs aoe, or general aoe. For the most part that's right minus ogcd clipping in your rotation and the f2. You can pretty much remove f2 from your bar.

Against 5 or more targets (maybe it was 6, I can't recall) its actually better to 'cold' flare, as in casting a flare while in umbral ice after freeze, then hard casting a second flare into a freeze again.