References to R22's being twitchy and unforgiving is not helpful to students to whom confidence is paramount.
My first instructor thought confidence was paramount. I was a fixed wing PPL who thought I knew how to fly. Due to his attitude, I ended up dangerously overconfident for a while...till something happened which I won't go into here.
I'm not saying you're completely wrong, and maybe there are better ways of generating confidence. But I don't think you can safely generalise about students in that way