Obviously you read, but do not comprehend that which was written. No one has said that animals with a reduced pattern is a JAG. What they have said is that an RPM (reduced pattern morph or whatever the original term was), the name that was given to them by Doc Rock at Southern Cross Reptiles, are JAGs. This was just a way to try and introduce an animal that has originally been smuggled into the country without being blatently out there about the true origins of the animals when he went public with them.
So, animals that have a reduced pattern do not necasarily mean they are RPMs or JAGs. And, most self-respecting keepers have introduced JAGs into their collections and bred from them. Even those that were purists 5 or 6 years ago are breeding with them as well. I suppose who can blame them, as they are stunning animals.
Also, if you learn the genetics behind the animals you are talking about, you will find that RPMs have exactly the same genetic traits ie. mode of inheritance, as JAGs, including the nuero issues. So before you go and rant on, at least learn what you are talking about before lecturing those that do. Albino darwins are not RPMs and have never been coined so, they have also never been termed as 'reduced pattern' animals either. they would either be high white, or high yellow etc etc.
If you bred a proserpine that had a reduced pattern with another proserpine with a reduced pattern, you get a.........yes, proserpine with a reduced pattern. no rocket science there. or if it is a cross between two seperate species that have a reduced pattern, then you have a hybrid/cross of something. You do not end up with an RPM or JAG.