This is rather sensible, despite some mentions of oddity. By coming to GDA for protection, NWO has requested their assistance. In return they have somewhat sworn fealty to GDA, while GDA has retained its complete autonomy, much in the way that is sensible for a larger alliance to have over a smaller one who has requested their protection.
While it does read a bit lop-sidedly, that is a result of one alliance compensating for the risks it has undertaken by having a protectorate, while still giving the protectorate the chance to to request assistance and recieve benefits.
Why on earth would a protecting alliance have any obligation to put both alliances on equal terms not of respect and honor, but of power? It's obvious where the power lies in most protectorates, and this one simply spells it out more blatantly then others.
That said, best of luck to both of you