Selection is a crooked gambler who ignores bad throws of the dices and demands pament for throws in his favor. Hence the continual deviation from probability. Anyone can win if you don't have to cover your losses.
Of course the uncovered losses are paid by the sub-optimal creatures who suffer from disease or who are killed and eaten.
I guess if you believe in a designer you believe in a sadist.
That seems to me an unnecessary remark.