True morality isn't unpleasant or burdensome. Moral knowledge is knowledge of how to make choices. It's a tool that has information about how to get what we want, and what we should want. It's not arbitrary or artificially limiting. If something is a bad idea, true moral knowledge on the subject will include reasons why it's a bad idea and explanations of what will actually work well. And they will be persuasive. If they aren't persuasive, that indicates a *lack of* moral knowledge. If the "moral" alternative proposed doesn't sound nice, that indicates a *lack of* moral knowledge (either the proposal is wrong, or the explanation for it isn't good enough).