> now you could just run all of that student's activity in class through that AI. In the real world you don't know if someone is competent because you run an exam, you know if he is competent because he consistently shows competency.

But isn’t the whole point of a class to move from incompetent to competent?

Sure, and the exam is to test that happened. There is no need to perform that test at one point in time if you continuously check the student's performance.