“Job names are especially tough. (laughs wryly) After all, there’s no point if a job is similar to its namesake in name only; its gameplay experience needs to match their pre-established design too. At this point, I’m thinking we have no choice but to come up with brand new jobs that haven’t appeared in the FF series before. From a system perspective, if the number of jobs is fixed and well-balanced, there’s no need to add more, and adding new jobs would obviously cause a stir. But nevertheless, we always need to add more jobs to keep providing new gameplay experiences.”
There's the quote from Yoshi, interpret it how you will