I'd have to ask whether or not Hogosha's main purpose is as their name suggests "guardians" or "protectors" of Kusari and its people. Not attackers supporting an invasion. They'd be back home fighting the QCP and generally keeping Kusarians safe, I imagine. There interests would primarily be back home in Kusari, with smuggling and the unawful groups. I don't really see them bridging the Taus much, if at all - they're mainly Sigma-based, what with the artifact trade.
And then again, the BDS probably knows what it's doing and even if they don't, this is not a huge stretch in roleplay, so everyone would be better off just getting along despite whether or not they think Hogosha should be in Bretonia... shutting up and letting an issue alone more usually brings things to a peaceful conclusion than not.
