We had sorc and merc healers and killed in on story mode in 6 attempts. We are mostly full rakata. We never seen this fight before, only read tactics on mmo mechanics. We do 2-3 raiding nights a week. This fight is perfectly fine tuned. So just try to analyze what keeping you form a kill. Most of the damage can be avoided, you doing something wrong.

I really dont understand why devs don't make in-game recount that will make both groups happy. All they have to do is to restrict access to your character logs to ppl in your friend list. That's all. If you pug how well do you perform is non of thier buisnes. If you have an ops night just add your RL in frieds list and he can see how well are you performing. And if you like to show off just turn off all restrictions in preferences so all can see your logs. Everyone happy.