the lamest recommendation letter ever...

Today, I was looking at the numerous application forms related to my Statistical Information Processing (TSI) Master in Paris-Dauphine and saw a recurring recommendation letter from a professor of econometrics in Paris-La Sorbonne (I think) for his students: it mentioned that everyone in the class had had poor grades (the average was 4 out of 20!) but that the student recommended by the letter was quite good and bright… What’s the point of giving exams which grades are concentrated in the lower tail and of writing such useless letters to compound the first error?! In the end, I forgot about both the grade and the letter.