Why is everyone anxious about a PLD Rework?

[Shurrikhan]

Except, as you just noted yourself, to know the total rDPS a job contributes, since exploitation of raid buffs appears only on someone else's rDPS, requires looking also at the variance in a job's rDPS and likely raw damage. Else you can only rightly compare compositions against each other, not jobs. A job that supplies greater rDPS to its buffers, and therefore greater total rDPS, can still have the same individual rDPS.

That's what was being referred to: that job rDPS slime does not tell the whole story, not that tank damage or rDPS is useless or that they should be balanced solely around aDPS either.