I think that this is very reflective of our generation. We live in such cynical times that it makes perfect sense to create a story where fear and death are the main complements and fairy tales are nothing but naive children's dreams- a distant memory.
Interestingly, to me the book was a cross between "old-school mysteries" and modern day Law and Order style tv shows. It opened up with a introduction, the discovery of a crime, then an investigation follows but instead of a trial the resolve includes a "parlor scene" and a sort of happily every after.
I particularly found the "general amnesty" concept to be a nice twist. Characters who had violent past were not supposed to be judged on actions they claim happened hundreds of years ago. (Bluebeard specifically). It is like the creators are purposely trying to dismiss any preconceptions we as readers may have about fairy tales, yet at the same time, Snow White couldn't- therefore we cant either. All they can do is challenge our perception of fairy tales, but even though they will never completely change. Snow White will always be Snow White, the Wolf will always be the Wolf, etc.