Mizora seems to be full on comedy relief now. The popular b from high school. She pops up here and there and no one seems to mind a devil from hell on the streets, or in your camp. All she does it talk talk talk ta-ta, and give Wyll some horns which no one anywhere notices. Pacts with devils and selling your soul is a bit of an inconvenience, nothing more. She's just a mundane little side note like Withers.
Just one scene early on where she would actually do something horrible and evil, would redeem her value a lot.