This just isnt true though. Progression requires a far tighter usage of the entire healer toolkit. During progression you need to virus/disable those big hits when you arent well geared. Farming it really doesnt matter.
Take t13 ahk morns for example. Progression required scholar imput to heal tanks through it, farming required no scholar imput at all to deal with them.
There is a distinct difference in healing between progression based raiding and farming based raiding. Even sephirot ex when progressing required more imput from both healers than when farming it.
