The problem is not many Southern Baptists believe that. Many believe in a young earth, especially the older ones who still wield much influence. IMHO that would be the most pressing issue keeping McFarland from leading the SBC.
I’ve spoken directly with several professors from Southwestern Baptist Theological Seminary, and the consensus seems to be for “theistic evolution,” including the origins of man. It’s astounding how much liberalism has infiltrated the largest Protestant church sect/denomination in the United States.