I'm afraid you're going to need to explain that logic to me. I cannot think of any reason one would have to drop a treaty with an alliance just because one is entering a war on the "opposite side" unless one intends to attack said alliance. Which was definitely not the case. The possibility of activating our treaty with NSO had no bearing on the discussion about dropping the treaty with Soldier, and it did not come up during that discussion.
And if it only almost gives credence, I think it does not help your point.
I don't like bs, and I do not use it when I present an argument.