This is basically what is wrong with our current educational system. You've pointed to a number of different ideas that I think deserve the critical attention of both educators and instructional designers. We can understand teaching as a technique to be perfected in isolation of our understanding about what prior understanding and experiences students bring to the learning context. Perhaps we begin down this slippery slope when we start to make assumptions about the similarity of training and education. The 'baking' metaphor seems not to to apply well to education, if at all.
Technological development transforms what it is to be human.
We need to consider carefully the models of teaching and learning we choose to adopt, since undoubtedly both instructors and learners will be transformed by them, perhaps in ways that are unanticipated.