It's not an isolated incident, he is describing an increasingly common attitude which is utilitarian/"realist" at best and a grotesque materialist corruption of the liberal arts education ideal at worst. Education is generally no longer seen as an end in and of itself, but as a means to more money; insofar as one accepts that view, learning the material is aside the point; getting the grade that gets you the paper that gets you the job that gets you the money is the point, for them.

I‘m not super versed in sociology of education but I was always under the impression that over assigning was a real problem in undergraduate and collage setting (even in high school to an extent I heard last).

My post-modern mind went straight to thinking this was the system working as desired. We over-assign to weed out students of from lower classes such that they are more stressed and less likely to graduate, therefor maintaining a status quo of higher classes being more educated and more deserving of the fruits of the labor of the less educated working classes.