I think most of you guys are missing the point of the thread. The OP is talking about Healers that are literally just standing around doing absolutely nothing leaving the other healer to fend for themselves. Think of it like the PvP problem we had with people just AFKing, but apply it to PvE content instead. Honestly, I have seen this behaviour lately especially in the final Stormblood trial and the new Normal mode Raid tier (there were points where the other healer would intentionally jump off the platform). I wonder why.