Well they were just examples, I wasn't trying to assume what SE would release. It was less giving names to classes and more of a system.

Where you are suggesting a: Release these offensive and defensive jobs at 30, and these at 50.

I'm suggesting: Level 30 unlocking two basic jobs, and at level 50 you unlock an advanced job of the same type but stronger. Gives you time to get to know your job for parties by the time you hit Endgame stuff (whenever that gets implemented).

Otherwise, some classes get prioritized and seem more important than others, AND you would end up having to have something like 4 jobs per class. Which unfortunately I don't see SE doing.