If you disable cleric stance during combat, when would you use it?

[Cynfael]

That's exactly what is being said.

Actually it isn't. What was said was that healer DPS wasn't taken into account when calculating clear minimums for raid content. Doesn't mean the same thing or even close to what you are suggesting it means.

To be extra clear, they are obviously aware of the fact that healers do DPS; what they have been choosing not to do is purposely tune encounters so high that the DPS are unable to meet the minimum clear check without healer help (assuming that the DPS are performing close to average expectation for the target ilvl).