I don't judge difficulty simply by how hard it is to clear a game by any means necessary. I think that people shouldn't judge a game's difficulty if they're spamming continues. If you have to continue, then the game isn't easy. If you're spamming bombs and continuing, you aren't even experiencing the full game.
Has everyone who listed Magical Chase completed it on the hardest difficulty? Many games, especially shooters, have a normal mode that is balanced for the lowest common denominator, so that more people can enjoy it. Ninja Spirit may be beatable by most people in PC Engine mode, but the game was designed for one hit kills.