Honestly people really need to start making more PFs with 1 tank 3 dps it's going to be a lot faster to clear. Maybe that would get the message across or maybe not who knows...

Healer is a grief role in dungeons that serves no purpose other then to slow down your dungeon run because it brings nothing of value to a dungeon now, Not even rez (which yeah smn/rdm could already do but its a lot more showing now everyone can rez).