No New Races... But New Clans?

[Lauront]

Isn't that more unique to the royal family? Solus' descendants were/are absolute units by garlean standards but most others we've met have been tiny compared to them.

Varis and Zenos are indeed particularly large, with Solus being described as more unexceptional in height for their kind, but being strong of body is not unique to them, no.

Though Garleans are known for their large frames, the body he wore was by no means exceptional in that regard, nor was that of the woman he took for his wife. Yet their firstborn son was a prodigiously tall and robust specimen, unprecedented even among his kind. As the boy grew, his physique was held in awe and admiration by all, though to him it was a source of great vexation.

We've had several instances of them being fairly tall as well. There's some exceptions, like Aulus, but one must remember they've had to survive in a very harsh northern clime, without much inherent ability to manipulate aether, so the above makes sense.