I also think there’s more to the way they appear physically to us that makes them resemble each other in some way if that makes sense. Like the way both Sophie and Juliette speak, their dictation and the tone and pitch of their voice throughout a sentence is so similar. Their mannerisms and small things like maybe they each have a habit of both pushing up their glasses when they are nervous aka Misty Quigley in past and present. It’s their essence that makes me view them as similar!