I suggested as much to the author and he deflected with "Traveller has wolf people in it?" Anyhow, it's entirely possible he didn't know. Animal people are the defacto elves and dwarves of sf.
Still the Tulgar are quite different than Vargr, they're bigger for one thing, and they're all noble and knightly. A Vargr might be impressed by the charismatic notion but chances are they'll find another fad to follow in a week or two.
As for the Privateers setting, I'll agree it's pretty thin and oddly restrictive. If you get the Races and Cultures book, it expands on the races a bit and makes them more interesting and there's a couple of the Datanet articles that build on the setting. It's a shame we never got the setting books to flesh it out more. I have long maintained that the stats are not representative of the descriptions and in some cases (Valesiens in particular) virtually un-playable.