That is very helpful. Thank you for all those details and the careful explanation.
I will propose the original image at the top of this thread be moved right now.
Tagging
@purpleinopp here since her plant and images are being discussed in this thread. I'm sure Tiffany will weigh in if she has any comments to add.
All of what you said makes sense. I am still a bit confused because of the flowers in that last picture, which do not seem to be spreading like the Grapto and Sedum parents (see example in original post). Maybe that relates to maturity? In any case the stamens are recurved, which is a Grapto (and xGs) trait, and that alone would nudge these plants toward another listing.