If I pick up a book with spaceships on the cover I want spaceships. If I see one with dragons I want there to be dragons inside the book. Proper labeling. Ethical labeling. I don't want to open up my cornflakes and find that they're full of pebbles... You need to respect the reader enough not to call it something it isn't.
People who think they know what they are talking about when they talk about baseball include the announcers and all of the sports press - no matter how much evidence you present them to the contrary they will continue to think that what they think is right.