Yes, but if that point happens after Clippy has control of even just the near solar system then that still poses a massive existential threat to humans. The point of Clippy is that a) an AI can have radically different goals than humans (indeed could have goals so strange we wouldn't even conceive of them) and b) that such AIs can easily pose severe existential risk. A Clippy that decides to focus on turning Sol into paperclips isn't going to make things bad for aliens or aliens AIs but it will be very unpleasant for humans. The long-term viability of Clippy a thousand or two thousand years after fooming doesn't have much of an impact if every human has had our hemoglobin extracted so the iron could be turned into paperclips.