I don’t understand how it is a point of contention for people arguing for intelligent design. Wouldn’t it fall in the same category as questions like “if God is so good why are there wars and poverty”, where the answer is “to your feeble human mind it would seem like a design flaw, but God knows everything and everything He does is perfect but because you’re not God you can’t understand his brilliance”?
I think so. Another way to say this is "if you think you observed a flaw in humans, it's by definition not a flaw cause god doesn't do those". Like heart attacks, childhood brain cancer, blind-spot in our eyes.