this is wanting the illusion of choice. in this game, the way it is played at high level means that only the most optimal build will be accepted. then you have no choice in what to pick for your job or sub-job ability. This is why jobs are "complete" as they are already. the only thing that determines success in gameplay has and always will be - PLAYER SKILL. meaning, you can't rely on some mythical build to help get you through content. the main point to clearing content is to GIT GUD.