it would work but players would not agree.
in many games crafter have this role, but FFXIV players is used to not have the absolute need of crafter exept for food/potion/glamour,and don't like when craft for the relic come.
so the players can say i don't need a crafter and i don't need to levep up some crafter or rely to crafter.
i think it's also a measure against the gold seller and not only to please the players who don't want to rely on craft