That report is superb. It isn't lonely either, has a few partners of the same ilk. Tremendous stuff really.
In regards to an 'advantage' they have gained, no not really. If we were point whores and they didn't care about diplomacy in the future, then yes it's be an advantage. But the advantage they have is so minimum and will last for such a short period of time that it's pointless. Should Rhino miraculously win the war, then who will NAP them? They barely honoured any terms of the NAP and every tribe who has diplomacy with Rhino should be checking their backs 24/7.