This seems to be yet another nail in the coffin for creationist arguments. The reason humans are intelligent isn't because we need brains capable of appreciating "gods creation". Rather, it's a side effect of needing large amounts of computational power for our highly refined motor skills. Things like mathematics, philosophy, music, etc. are, on many levels, much simpler than the complex tasks of climbing a tree or opening a door. Recent developments in robotics has forced us to realize this. Consider Movec's Paradox:
Moravec's paradox is the discovery by artificial intelligence and robotics researchers that, contrary to traditional assumptions, high-level reasoning requires very little computation, but low-level sensorimotor skills require enormous computational resources. The principle was articulated by Hans Moravec, Rodney Brooks, Marvin Minsky and others in the 1980s. As Moravec writes, "it is comparatively easy to make computers exhibit adult level performance on intelligence tests or playing checkers, and difficult or impossible to give them the skills of a one-year-old when it comes to perception and mobility."
Similarly, Marvin Minsky emphasized that the most difficult human skills to reverse engineer are those that are unconscious. "In general, we're least aware of what our minds do best," he wrote, and added "we're more aware of simple processes that don't work well than of complex ones that work flawlessly."