The music analogy is more correct than they realise. A huge proportion of music is poorly served by cherry-picking the most appealing tracks; any kind of suite or conceptual work is much better understood when you experience the whole structure. If you can pick a couple of tracks from an album and get a comparable or better experience than someone who listened to the whole thing, it probably wasn't a very good album to start with. Similarly, a course with light depth and populist subjects might be well-suited to cherry-picking, but this would be a symptom of a shallow course.
The solution of course is to create analogous "Double A-Side" and "EP" courses, which are short, stand alone, and add some breadth to the student experience at a reasonable level of quality. The standard should still be the LP.