In effect, protein engineers are using the power of random change plus intelligent design to see what if anything will improve function.
Our brains have vastly more ability than is needed for survival, most notably the capacity for language and abstract thought.
His choice of targets for criticism and for praise have a lot more to do with his particular agenda than the defects or merits of those whom he critiques.
There are innumerable descriptions and definitions of theistic evolution. How things are phrased matters a lot.
He defines himself as a Christian who affirms evolution, while also rejecting the name theistic evolutionist.