I'm of the mindset that the Hunters shouldn't be hunting the GRN even if there is a bounty on them. You know, the Hunters being lawful. Kusari has nearly the same stance on the Hunters as Gallia does and I don't see the Hunters shooting KNF down.
I do remember, Agmen (or another Hunter leader), saying they try to stay out of the wars between houses. When did that change? I mean, if you try to tell me it did when the King of Gallia spit on your offer, I'll point you to the Emperor of Kusari doing the same thing and you haven't gotten involved in the Kusari-Bretonia war. Though, you don't have any bases in Gallia like you have one in Kusari.