I can't think of a good reason (from a critical standpoint) to have the default difficulty levels of Rising, Bayonetta, Max Anarchy, and others be as easy as they are. While playing a single pass on Normal is ignoring a lot of the content in these games, these games would be undeniably better if they were hard enough on their standard difficulties to force players to learn the mechanics more intimately. These easy standard difficulties are an even bigger crime when the harder ones are locked and force players to spoil much of the game with an easier playthrough.
Ideally, the difficulty curve of something like Bayonetta would happen organically over one big normal-to-hardest playthrough rather than be cut up over multiple difficulty levels.