3.5 pet peeve for me is cohealer spamming cure/benefic/physick after we fall in zurvan, when i have virused at the start cleaves, fey illu, rouse, whispering Dawn, steroid embracing and to get soar at 76% hp.... pls.. pls. i could (and have) solo heal this and outdps you at this point.
The less phases you have to deal with, the lower damage the party and specifically the tank has to endure, which means more time Lilly can keep the party healthy. It feeds into itself.