To be fair, from a Terran's point of view, such a massive continent should've also had a massive desert in the middle of it. It was just how it was because moisture tended to dry out nearer the shores.
However, in Xeno, for some reason, except for the patch of desert on one part, the rest was verdant land. This was mostly due to aether.
Now, the theory was, since aether was dwindling a bit, certain parts of the land were simply returning to how they should be
However, between forest and desert, who'd be willing to live in the latter?
Sadly, there were not many clues about this. She had vaguely mentioned it to the Grandmasters before, but they had not noticed anything amiss. As for Princess Naia, it seemed that she had noticed it too, but she had no idea why it was happening either.
