If your talking about in terms of the Pact, the Equestrians have massive amounts of power compared to other pact races, and a lot more resources. It was more expanding there influence and gaining a new set of races and abilities.

If your talking in terms of the Equestrians not really, the reason i don't mention the other races that much was because the Ponies and Griffons were the only two races which held significance in the Equestrian Empire. The hold majority power in the Equestrian Empire.