I did this as 20 pug with only lnc at 10 and physical lvl 17. I was able to complete that one by watching their cone aoe. As the blue mist started to signify their ws, i just moved behind them and it never hit me. Now i dont know if i was just lucky with the misses, but every time i did move behind them while the ws was being activated, i received a miss from it. Of course it was super hard and i did die with the first group. But i guess i was a quick learner and i was able to do the rest. But i did have to rely heavy on my Second wind and potions. And no i did not have any evade buffs up at the time of the misses, just thought i would put that out there ^^
My point is along with everyone else, strategy works well with the updated eq, vit and so on.
Good luck with the next time you face off against them ^^