Because sometimes he "wrong" action is the right thing to do. No automated system can anticipate everything. Think the NASCAR "drive at the wreck in front of you" - by the time you get there it will have moved.
Especially on a ship that might have to spring from "situation normal" to active combat (maneuver/attack/defend all at once) without a pre-knowable trigger condition.
Especially on a ship that might have to spring from "situation normal" to active combat (maneuver/attack/defend all at once) without a pre-knowable trigger condition.