I appreciate it is a difficult balance and there probably isn't an answer to please everyone. I also don't know the specifics of these two KDs and don't really want to get involved in it.
But looking more generally, if this is suggesting that KDs should not accept war proposals that they think are too easy, that seems odd. If it is felt that the game currently allows KDs to offer war to KDs that are too much smaller than them, then why not change the rules on the war offer range? If it is felt that the war offer range is correct, then it seems harsh to say that a KD receiving an offer that is "too good to be true" shouldn't have accepted it.