Sadly I don't see this happening for this particular achievement as it was one of the carry overs from 1.0 and if my memory serves right none of which got updated for ARR's engines and systems . in 1.0 it was possible to earn 10k - 20k gil per quest per completion so it was far easier to obtain in those days. Additionally because leve quests were one of the only ways to level classes and jobs. SE seems to just want all the old achievements stay as they were in 1.0 and set them aside as mere afterthoughts for ARR.