Hux did have to acknowledge he would have done the same.
"The rules of war are clear enough, true." Or, Hux supposed that they WOULD be, were the Resistance clearly identified as an enemy power by someone. As it was, they had no official leg to stand on, did they? Hux was fine with that to a point. He would have to be. "But not always followed, as you note yourself."
His shoulder stung, Hux realized, and he didn't quite want to consider the potential damages yet. A part of him wanted to laugh, or confess, or something, especially at that smirk, but as it was, he did his best to be still, only...all right, there WAS something satisfying about having wasted their supplies, particularly given how he felt about it these days.