Sankaku Channel/

Rinfinite said:
Different games and different names that point to two races with different facial features from each other, which is the main issue. They both have different identities so no aliasing can be done since both tags do not mean or refer to the same thing.

As much as I'd love to have a active, thought-out debate over it, Square Enix has already proven that the game doesn't need to be in rapid succession to be a time-skip between chronological storylines--and the Mithra and Miqo'te share almost every similarity save for those made explicitly different by the diverging bloodlines of the Sun Keepers and the Moon Seekers. More than enough in-game evidence points towards the singular mother race, the Mithra, and more than enough "exclusive" physical features were carried over from the mother race upon creation of FFXIV to layer in hard enough that it's the same world at a very different time.

The race can be named many things across history, but unless the Miqo'te are somehow part Viera--which was not a race in FFXI--then there is no reason to assume that they are not the same as the Mithra, and should be treated as such.