A complete map of Hydaelyn

[Zetsumei_Tsunarashi]

This is something that's been bugging me for awhile, so I figured I'd ask and see if anyone more astute in the Lore might have an answer.

Why isn't there a more complete map of the entire world of Hydaelyn ?

We seem to only ever see detailed maps of the Eorzean continent. The characters in the main scenario seem to be fully aware of places outside of eorzea and some (like the domans) are not native to Eorzea. So if these places outside of Eorzea are so well known, why do we not see any maps depicting their locations.

I just find it odd that the characters in the game are so keenly aware of other regions in the world but yet we have no way of referencing their locations. The fact that airship technology is so widely available makes this even more puzzling. Surely someone has used an airship to travel the world by now and made a map of it ?

Btw, Nedrick Ironheart, the grandson of the guy who made the first map of Eorzea, is alive in present times and is continuing his grandfather's work. So why does he seem to only be interested in mapping Eorzea (still?), and not the rest of the world ?