These are good points but I'm not sure how well they apply here. He's not just telling people that they are wrong or providing the correct answer. He's forcing them to confront common misconceptions and then engaging them in the process of discovering why their ideas don't make sense, and why the real physics makes sense. I think the engagement and the interaction is key.
I'm just speculating, though. It's too bad we don't have access to a more detailed description of his research, since it might address some of these issues.