If this is supposed to be an (eventual) player race, it won't be till 5.0. This is a good way to show off what they already have working though. Plus if any "beast" race could actually see use in the Western portion of the game, its wolfs.

Also nothing says that the few we see here are indictive that the rest would work for the Garleans, beast tribe or not. Though if it is a beast tribe expect the Garleans to have captured their Primal and unleash it on us at some point.