when a computer program designed by a human "makes" the decision, humans can claim that it was "a funny mistake", it was not their fault and pretend to be very sad for it.

Having a human to make those decisions is better because this human can be judged if commits war crimes or genocide or violates international war laws.

A computer can't be jailed and this is the real power of designing this system. To hide the criminals on a black box so nobody can be made responsible