You are correct in that there is no DNA evidence that I am aware of showing that early hominids had dark skin. There is haowever reams of circumstantial evidence and logic advocating for it. Either way, you can not blame this author for claiming it. Do a google. He could have claimed a hundred sources from peer reviewed papers.
Perhaps. I guess I’m just allergic to evolutionists making claims for which there is absolutely no proof other than their own assumptions.
For instance, early hominids are invariably shown with a shaggy pelt of hair. We have no data on how much hair they had.
Massive assumptions are made and presented as fact about the appearance of dinosaurs, despite the absence of evidence about their hide texture and color. For all we know they were bright blue. Some now even think some of the dinosaurs, perhaps most, had feathers. There is even an extended debate about whether all dinosaurs were cold-blooded. Of course, feathers, primarily a temperature control mechanism, would be of little use to a cold-blooded critter.
Those of us who believe God used evolution as a tool of his Creation find the calm assertion of many evolutionists that they know much more about ancient creatures than they actually do irritating.