Healers, not required. (EW SPOILERS)

[Bobby66]

They need to go back to the Damage Down debuffs instead of the Vulnerability up debuffs. Stop punishing healers for other players mistakes.

I could also get behind that, though I still do fall into the camp that prefers instant death or Vulnerability stacks. Though I like when groups try make my job harder as a healer, brings me great joy.