I just started teaching undergrad CS courses after ~20 years of various non-academic jobs and it took me about two semesters to realize that almost nothing matters except how I assess students.

Two weeks of ADHD-fueled research later, I concluded that academia is actively resistant to implementing assessment reform because it would expose the utter pointlessness of most of what happens in university classrooms.

The reality is that we have no idea what most university exams measure because they are ad hoc, written by amateurs (yes, most professors are untrained in pedagogical methods) with zero psychometric validity analysis.