I think you need to think about this differently. Chicken and egg, egg and chicken.
How did PCNA trees begin in nature? They most likely are progeny of PCA trees that had traits arranged in just the right way to express a NA characteristic. I think what you mean is the odds are very small but with enough pulls of the slot machine, sometimes you get lucky.
Keep your mind open to possibilities you might not have thought existed. I think the overarching theme of the large amounts of discussion on persimmon breeding recently is that we really don’t know what we are talking about relating to genetics and can only speculate based on previous experiences of others to infer the path ahead regarding breeding. There is clearly much more to be learned about persimmon genetics than we already know, as with most things in this world.
Also, the trees you have in question were likely known about by a few people other than Cliff more than two years ago, you just didn’t want to believe in the possibility at that time either.
I’d prefer not to continue this conversation on this thread to keep things categorized.