Like having the student dynamically alternate pushing the rudder pedal to the stop, left, right, left, right, etc, when taxiing, I often use exaggeration in teaching. In our industry, teaching is supposed to be codified and teachers certified. While certified, I am also certifiable. Good war story tellers and good fish story tellers are not always certified, but they are good teachers. And they are certifiable.
Exaggeration emphasizes a point and generates feedback. Criticism is good feedback. It lets us know we got someone's attention. It also makes us refine our point in further discussion. Praise is also good feedback, but more suspect. We have to wonder if it is just jumping on the bandwagon.
I am a member of the International Association of Flight Training Professionals. They encourage submission of training practices or techniques. The problem is that they are reluctant to submit non-sanctioned techniques and they are reluctant to criticize in areas where they do not feel that they are experts. Thus it is mostly an airline pilot forum. There are some good guys there, but the discussions are not as lively as here. Keep up the good work.