Mercedes Lackey has revisited a number of fairy tales. Her stories usually end up on a positive note. She has also told stories about where Fairy Godmothers come from! They don't just appear magically! Well, they do, but they were somewhere else before they appear!
Remember-- people like Cinderella, Sleeping Beauty, Snow White, &c all had terrible family lives! Evil Step Mothers, Wicked Step Mothers, Abusive Sisters, Locked in a tower with very long hair-- it doesn't take a lot to add a 'dystopian' twist to a fairy tale!
If we're talking about Grimm's fairy tales, children ended up lost in the woods, at the mercy of wild animals, witches, and other hazards!
Russian tales are just as much fun-- Baba Yaga and her house on chicken legs-- making any visitor a virtual slave! Peter and the wolf... sometimes the duck survives, other times you just hear her inside the wolf! But the music is nice!