I think this comment touches on the idea that, given a few hundred students enrolled in a course, there will be some subsets of students who get more out of one

I think this comment touches on the idea that, given a few hundred students enrolled in a course, there will be some subsets of students who get more out of one type of teaching/learning methodology vs some others. Therefore, at random places at random times there will be courses that emphasise some methodology/ies where a majority of the students do well, or not, given some kind of bell curve distribution of student-methodology success. The outcome of which is that, occasionally, someone can write a convincing argument for or against some particular methodology. Teaching and learning, at scale, is difficult; outcomes are ill defined and hard to measure; correlation, causation, competing priorities and influences.