A fool with a tool
AI systems presently tend to be pitched as assistive systems that augment human decision-making rather than autonomous systems
That is fine if you have a real expert validating the output of the AI system and making the final decision. If someone without the necessary skills (suffering from DKE) is in charge of making that decision he'll be unable to spot the bad decision where the AI has it wrong.
Training the decision maker to blindly trust the AI is not going to improve the decision making; it would be cheaper to just go to fully automatic mode and take the AI's decision.