I found this article interesting only in so much as it concentrated on the success or failure of academic performance, rather than any other form of success/failure. This raised numerous (too numerous this early in the morning!) questions about how one defines success or failure, and who or what defines it. It is terribly subjective, isn't it.
Academic success, in a specific field, for a specific reason, was important to me and I made sure I achieved it, in order to work in the field that I did. This travels along with me and remains an import factor in my life today, as it represents a core value in how I see myself. Maybe because I achieved this in my 40's - rather late in the day, some may say. With failure, I suppose it depends on what one does with it and how it is allowed to impact.
I think one can learn to fail, and learn to succeed, which depends upon so many variables it would be impossible to quantify them all.
So all this waffling is my way of saying that success and failure are life's bedfellows, and if one is fortunate, then a balance may be understood and achieved that allows a restful nights sleep!