Well, over 10 years as a flying instructor and many thousands of lessons does make my "fact" a bit more likely to be true than that of a single inexperienced student.
But hey, since you know all about it and what is the best method for teaching students, then away you go. I used to be CFI at the school next door to where you are training. So obviously my opinion counts for naff all compared to yours...
The customer is not always right, that I can assure you. Especially when it comes to teenage PPL students...
Other than that, all I have to say about your comment is "wow"...