Using random mutations results in a stupid optimisation technique.
Of course it is trivially true that the mind uses evolution-like algorithms internally. Most optimisation techniques have a basis in trial-and-error. That doesn't mean that they are constrained to use "random" mutations.
http://edge.org/conversation/infinite-stupidity-edge-conversation-with-mark-pagel
Random change, then a selection, says Mark Pagel. As I agree, here's the link.