I don’t think the study can claim all the things it does based on the evidence they have.
In retrospect, where does the evidence stand? Here’s a summary: Venema’s main claims in light of the relevant science.
Both evolutionists and Darwin-skeptics believe that all living humans trace back to a common female ancestor, and a common male ancestor.
Venema seems much more interested in pursuing longstanding debates with intelligent design and with certain ID proponents.
Recently Dennis Venema joined with Scot McKnight to publish a book, Adam and the Genome, in which they claim that there never was an original pair of humans like Adam and Eve.