The university model where professors are researchers is a failure desu. Most of them aren't capable of explaining concepts they should know like the back of their hands and just follow the book (which is often shitty). They don't know how to organize a course (either it is harder than it should be, or it allows literal monkeys to memorize problems and pass without understanding shit). Who the fuck thought his was a good idea, I had high school teachers who could explain stuff more clearly