The Mino Clan migrated to this universe just like the other Clans had. Only Dyon's mortal world were true natives of this universe.
While the Ragnor Clan controlled 29 universes, the Pakal Clan controlled 26, and the Uidah Clan controlled 24, there still remained 21 universes in the Celestial Deer Quadrant that were seemingly 'unclaimed'.
One had to also remember that Dyon's home universe wasn't adjacent to just the Uidah Universe, it was also adjacent to the Chaos Universe, the former home of the elves.
Why was this important? Simply put, the gifts the Shruti Clan left for the Mino Clan in compensation also involved the reason Saru and her clansmen decided to occupy Planet Mino instead of any of the other four planets available to them.
The Shruti Clan was able to decipher important ancient ruins left for the Mino Clan by their ancestors, ruins they had long forgotten the meaning of.
