So to draw a comparison and conclusion between these points, for a moment, a hated character (Wen Chao) needs to be considered as a... potential lover? Pros and cons. Ethics. Morals. That's SO PROBLEMATIC!!!1!1!! Anyone who dares entertain this thought is a terrible person. (sarcasm)
Oo, I don't think I have seen any meta like this! But tbh I'd read the canon divergence AU where Wei Wuxian turns up more powerful than ever and tops Wen Chao. Mostly because it'd be absolutely hilarious, and the wangxian monoshippers would explode.

Sorry, this is vastly off-topic from your post. Maybe I'm bitter than I couldn't enjoy myself more with these books.
Ranting about MDZS is always on-topic! And yeah, I'm bitter about the books too.