Ill take you one further, the first time I saw past big bang (in pf mind you) it was day 1 so nobody had seen flares 2, so 6 people died, but we heal lbd, when it repeated 4 dps died, but we rezzed them, and the transition, we just yoloed it with a ton of deaths. When the fight finished, we had like 20 deaths and vulns, and to top it off we never even saw the enrage cast. It may be just a touch undertuned.