How do you meet the accuracy requirement for endgame raids?

[Gallus]

Um, you just described situations where Healer DPS reportedly saved the day because people screwed up. That's literally the Healer needing to DPS to meet the check because the party was doing it wrong.

This isn't a "I'm gonna be a 10/10 player because others play bad", this is a "I'm gonna be a 10/10 player because I can".

[Donjo]

This isn't a "I'm gonna be a 10/10 player because others play bad", this is a "I'm gonna be a 10/10 player because I can".

All I'm saying is that you used the wrong example to attempt to prove your point. The point people are trying to make when they say "if healer DPS is necessary then you're doing it wrong" is that the encounters are theoretically designed around healers who do 0 DPS. Therefore, if healer DPS is actually necessary to clear the encounter when all other conditions are optimal, then you're not getting enough DPS from other sources. This certainly doesn't apply to the highest tier raiders who used healer DPS to beat the Final Coil at the bare minimum level of necessary gear. Those situations are groups being clever enough to bypass gear checks with skill. Right now, however, even groups who have never entered the Final Coil should have the gear to provide enough DPS from just their Tanks and DPS to meet the initial checks there. In a group that possesses the correct level of gear, Healer DPS should be a bonus, not a necessity.

[Cynfael]

...encounters are theoretically designed around healers who do 0 DPS.

I see this kind of statement frequently presented as if it were fact. I don't really buy that the devs gave both healer roles DPS skills (even branching SCH off of a DPS base class) and somehow failed to take into account while designing content that players might actually use them.

That's pretty much saying "We catered our design to the lowest common denominator."