The Bayonetta one seems a bit.. weird. Smash is all about the "family-friendliness", and she is one of the least "family-friendly" characters video game characters ever. I mean, when she attacks, her clothes come off. They could always dial down the sexual element of her character, but that is literally one of the central elements of her character.

So they're going to fundamentally change the character of Bayonetta in order to make her "family friendly". Why not just use a popular character who's more "family friendly" to begin with?