General concerns with the Devs content philosophy

[Seraphor]

This implies our jobs exist in the same capacity they do on the Source. Some could be outright extinct or sworn into secrecy—where its practitioners aren't keen to teaching someone entirely new to the First. And while that does sound intriguing, how do you tie it all into five quests? Furthermore, you then have to consider this only works for a handful of jobs before it starts becoming repetitive. No matter how you approach it, the logistics just don't make for a good story arc. I rather like how we, instead, learned more about the Warriors of Darkness.

Yeah I don't think I'd find it believable to see all of our jobs on the First in the same way.

Astrologian is specifically Sharlayan.
Machinist is specifically Ishgardian.
I wouldn't expect Red Mage to exist in the same capacity in Norvrandt.
Dragoon? What's a Dragon?