> I am paying for a self-professed expert in pedagogy, whose has spend devoted their proffesional [sic] life to the art of shoving information into arbitrary people's heads

That's not what you're paying for. They're not experts in pedagogy, they're experts in their field of research.

If you don't understand the course materials it's your job as a student to rectify that, either through self-study or seeking help. Clearly the student in question didn't understand the course materials well enough compared to his peers to receive a top-class grade (in the UK 70%+ is a first, the highest grade you can get).