EH...part of me says yeah its a good idea, but then you are gimping dd/tank who need a cure during an "oh sh*t moment" since they are typically low in the mnd department, being low in the mnd department means your low in the mag def too i believe, and that just means if they get nuked or any magic cast on them they might need to have their cure waiting, while a mage also cures them just in case. I would love to have lessened mp cost for roles during jobs, whm= less mp for curing/enhancing, blm=less for nuking, pld= less for w/e defensive or white magic spells he might have (what if they make him like knight from ffIII and he doesn't have magic only cover and stuff >.<, what if blm coming from thm only uses "dark" magic and not like elemental nukes and we all facepalm haha)

(thinking about curaja makes me think like "cast curaja" "instantly dies from hate" haha)