Why did God set up this massive sideshow at the Garden of Eden and then get them to mix with a "mainstream" species? To me it sounds like you're claiming God wasn't responsible for evolution but evolution+ where the non-perfect human out of nowhere blends into evolution. That can only mean one thing--there should be evidence of when this species (i.e. those that came from the Garden) blended into the "mainstream" species. Got any fossils for us?
"It is the mark of an educated mind to be able to entertain a thought without accepting it" ~ Aristotle