We're all DDs now >.>

[Rasylia]

Speculation.

Exactly. Since we have no way of proving (we are not allowed to measure dps) we blame the ones we can blame, since we can observe them -> Tanks and Heals.

Also, since you call it Speculation: Join any 24p raid of your likings as heal and observe the Dps-Classes. Auto hit dragoon, Fire Fire Ice Fire Fire Ice Blm, [...]

[Kitfox]

Exactly. Since we have no way of proving (we are not allowed to measure dps) we blame the ones we can blame, since we can observe them -> Tanks and Heals.[...]

Speak for yourself. My impression of wipes in 24-mans and over the course of 130+ Zurvan Ex kills on top of all the "failed-soar-let's-disband" parties is that DPS are blamed for failing DPS checks far more often than tanks and healers are. Personally, I try not to point blame without evidence either way.

It is true though that in high level parties healer/tank dps is the easiest reserve to tap into because the assumption is that all DPS are already performing at 100% output while tanks and healers might be keeping a safety margin, sometimes for good reasons. You can't tell DPS to push harder when they're already at max, but you can push healers and tanks to reduce safety margin and increase output, assuming it's not already maxed, and it rarely is if we're not talking about speed kills.