Hmmm. This guy's instructional and examining style is, to say the least, unusual - in fact, if your story is 100% correct, he sounds bloody dangerous. And you want to work for him?
However, the basis of his criticisms may be valid. You are expected, as an instructor, to be able to handle unusual situations and have a level of aircraft knoledge beyond the average.
I would change your game plan if I were you.
Scroggs