I agree with you, a smart AI with programmed randomness of stupid errors would be noticably fake. But it's still way better than the dumb AI in most games that

I agree with you, a smart AI with programmed randomness of stupid errors would be noticably fake. But it's still way better than the dumb AI in most games that I can easily out-maneuver. At least with a smart AI, the hardest difficulty will actually be challenging and exciting. If it's too smart, I can artificially dumb it down by choosing an easier setting... but at least I, the gamer, am making the decision!