Board Thread:General Discussion/@comment-6192846-20150822000535/@comment-6986530-20150822015730

I am gonna say that for a while I've begun considering the "Represented by X Vocaloid" distinction increasingly arbitrary in this series for the borderline reasons Servy laid out, and only existing as a shorthand for who looks like/sounds like who.

With that in mind, them being represented by the Kagamines in a song should be enough.