How about: “The boy who cried wolf”.
Teaching Academics who are resistant to every technology that comes along and say “it’ll take away our jobs!”. They say it so often that we start to ignore it. One day a new technology comes along and everyone ignores the warning. Maybe one day there really will be a wolf. What might it be? Holographic presence allowing for real-time multi classroom delivery sage on the stage? A speech interface into a machine learning A.I knowledgebase guide on the side? Neural implants plus VR simulations?