Funny to see this pop up, it's from 2008. I worked with Martin for quite a few years and we spoke about this article at one point. If I recall, the intended audience of this article is primarily incoming graduate students.The point being that the experience of doing research is very different from taking classes. It is not uncommon to see those who excelled in their undergraduate studies go on to graduate school and be dismayed to find that a PhD program uses a different skill set from getting good grades.