I agree about the dress changing. Or, rather, I wish I hadn't forgotten to do that before we left. I wish I knew how much time we have to mess around with now, and whether we can afford to go back and still cover all our other bases.
We MAY actually be able to argue that the SDM was already aware, and pitch it as us warning Renko about that they already knew. After all, it's not an exaggeration to say that they noticed the absence of faeries, and were planning to investigate (they just hadn't, due to lack of manpower).