Oh. I see. I use the term "jump the shark" to indicate where it obviously became bad, not the step right before. For example, the "jump the shark" episode of "Happy Days" was obviously a bad episode -- the moment when you really knew that it had become awful. By that definition, saying that the black album was where they jumped the shark and saying it sucked are not mutually exclusive. The former implies the latter, and the latter does not prevent the former.