I would be happy if said problem was restricted to damage dealers. My group last night (SoO 2nd Wing) wiped 4 times on Galakras and 3 on Juggernaut. Clueless tanks on Galakras (changed tanks 6 times on Galakras alone) and shitty healers on Juggernaut.
I also queued for Halls of Flesh-Shaping and, to my surprise, people still failed on Durumu. Tanks, healers and dps, all of them. 3 wipes and i could count only 4 players (including myself) after the beam phase.