I don't know how good the source is but this is a interview that they did with Koji.
http://fandom.wikia.com/articles/koj...e-localization
"When, if ever, will the wolf men in Yanxia be an official beast tribe?
For all intents and purposes, there are no beast tribes in the Far East, and this all comes down to the definition of “beast tribe.” The term is one of Eorzean/Garlean origin used to describe those dastardly “spoken” (the scientific category of living beings that possess a distinct language) living in Eorzea who feel the need to not play by the rules and run about doing all manner of forbidden nastiness like claiming ancestral land as their own or summoning false deities (eikons/primals).
While an Eorzean may look at the Kojin or the Namazu, the Lupin, or even Dalmasca’s Bangaa and assume they fall under “beastmen,” the denizens of the Far East simply see them as another race amongst many, and you should never hear someone from Doma or Hingashi refer to those races as beast tribes. (And if you do, it’s probably a bug and should be reported on the Lodestone LOC forums!)
"