>>43145476No, Rockruff does the same thing.
Also, even if they were unique, it's still NOT really unique, because there are already dozens of different evolution method. The method evolution doesn't change what the evolution does. In Manaphy and Phione's case, not only are there few unique breeding methods (A few require items for baby forms, then there's Ditto and Nidoqueen), the actual result is completely unique. It is not "How you breed Manaphy" that is unique, but the "Result of breeding Manaphy". In this case, the result of "Evolving Cosmoem" is the same as any other evolution.