lalafell? Roegadyn? Elezen? .....highlander?

[Rocl]

Reasonably surprised no one brought up Shatotto when talking about potential Mhachi Lalafell. There's a name that screams Lalafell.

I also don't see why Hyuran Eorzeans is unreasonable, most of the clones of Allag are decidedly Midlander and Eorzea was the seat of the Allagan Empire!

The NA publicity site from which you claim "three great migratory waves" has a very important caveat "Over the course of some one thousand years" Surely you see the problem, yes? The Sixth Umbral Era ended approximately 1580 years ago, which means Mhach was before any of these migratory waves. History in Eorzea is muddled due to poor recordkeeping and the penchant of Umbral Eras eradicating what little records there were--simply because there were three Hyuran migratory waves in the Sixth Astral Era and the Elezen deemed themselves the first race to have dominion over Eorzea (in the Sixth Astral Era, again) there's tens of thousands years before.

I think it's best to think of any past Eorzean city-states in much the same way you think of present day city-states. When you hear Ul'dah you think all Hellsguard and Dunesfolk, I'm sure. Maybe Seekers of the Sun too, if you're a F'hlaminn fan. But how could you forget Niellefresne? Colbernoux? Eolande? Prominent Elezen Ul'dahns! Hells, there was even a time where the sultanate was ruled by a decidedly Midlander family! I too believe Mhach was predominantly Highlander based on their statues but even the famed Mother of Sheave is wrong. We know Shiva was an Elezen. We know the Mother of Sheave is Shiva. We know the Mother of Sheave is Hyuran. Now this is just one sculptor's mistake, but it just shows the possibility for human error exists in Eorzea.

Also, there were definitely Miqo'te in Eorzea in the Fifth Astral Era (the time of the War of the Magi) as they're often quoted about crossing the sea and migrating to Eorzea during the Fifth Umbral Era (the Age of Endless Frost).