at the risk of sounding insufferably pretentious, odin sphere isn't a story about likable or multi-dimensional characters (and i certainly liked many of them). it's written like a scandinavian fable with the theatricality of a tragic play. complex or sympathetic characters aren't so much the goal in that kind of storytelling.
that's what kamitami's stories (when he wants to tell one, at least) are good at. muramasa is in much the same way a period story told like an exaggerated kabuki play, and executes on that extremely well imo. i'd actually say you might enjoy that more, since it's far more focused at a character level.
i'm not trying to say it has to be your thing or that if you hate it, then you're a Bad Critic or whatever, but i think stories should be judged on what they try (or fail) to be and not what they never shot for in the first place