No Garleans on the first?

[MikkoAkure]

We have one example of ancient Goug "human" that appears in the game.

Mustadio in his "human" form, doesn't have the 3rd eye. So that had to have come about after Ultima was sealed away.

Practically speaking, I don't believe a character that's on screen for 5 seconds would have warranted the development team to create a unique head for that character just to justify the lore. Also, it's already stated in-game that the people of Goug didn't have magic either. Why would the eye suddenly appear in the bloodline between Goug and now yet the limitations associated with it pre-existed Goug? It's more likely with said character that the developers were lazy/didn't care