Q u o t e:
Healer's Fault:
Stand in a fire? It's the healer's fault. Get crit while tanking and die? It's the healer's fault. Not enough DPS so the healers run out of mana? It's the healer's fault. Trying to do an instance in mediocre gear with no CC? It's the healer's fault. If a mechanic is supposed to be a gauge of skill, there are other ways to handle it than making healing really really hard. Thaddius is a successful solution - a nice exception to the rule.

It's Never The DPS' Fault!(lies)(Source)

WHY U CAN'T HEALS ME THRU WRONG THADDIUS CHARGE? HUH? I HAS TO DPS!

It is never the fault of the DPS. If they couldn't beat the enrage timer, it's because the tank didn't generate threat quickly enough. It's because they had to run out of the fire because your spellpower was too low to heal them through it. It's because you wouldn't let them Whirlwind or Volley or Arcane Explosion because you had to Shackle the bad man.

Pick your analogy. The DPS player is the quarterback, the soprano, the lead singer. ACHIEVEMENT UNLOCKED: AWESOME! BECUZ U R!

(Dear DPS, don't freak out. I'm kidding. But remember it's the healer, the tank, the decurser and the crowd-controller who are helping you be so awesome.)

 haha