That's an odd argument. Both evolution and Biblical history have man living and working at his present full intelligence level during the earliest history of writing 8-10,000 years ago.
I believe that Biblical history takes man back about 6,000 years or so. Many evolutionists take man's origin back millions of years.
That both sides would agree that man had full intellectual powers six thousand years ago means absolutely nothing to the debate. (Though to people of faith there is no 'debate' about creation).
'Debate' about man's origin only occurs when those who attempt, with junk science, to disprove the Bible's teaching. Though the theory of 'evolution' is unobservable and utterly impossible to recreate, it is advanced like some sort of secular catechsis or unassailable doctrine.