Yes because those would still quite literally require you to have a team that is a high enough level to get to that point in the game to encounter the monster, you constantly stating that as being some ironclad reason why BLU CAN'T fit into XIV's system because of--skill progression of all things. Is ridiculous.
Historically jobs have had their OWN POINT SYSTEM which is how they were leveled, and subsequently learned skills. Separate from your main level, on top of that SMN and BLM, WHM and RDM, obtained spells through purchasing them through shops, or in the case of SMN through defeating bosss's and obtaining items.
Wow that seems drastically different than how they obtain them in this game.