What not to say in your convocation speech

Today the university I studied did something unique, the valedictorian giving the speech does not seem to be a winner of any good medal although the literal meaning of valedictorian is a student with the best grade. Rather strange. Yet it's good because it shows that appreciation should also be given to the general student.
One thing that really strike me rather odds from that student's speech is that the basically ridicule the university life unwillingly (perhaps). He was basically very honest in his speech. He talked about tough 4 years of bachelor life, talking as if all present are singaporean. Talking about students staying in the university hostel and only going back home on weekends while at tims not going home for weeks to study for exams or such, talking about students who stay at home who end up spending much of the time in study room trying to study very hard for a tough university life. Basically, he portrays that students in the university (NTU by the way) who have no life because of the need to study very very very hard. Although he is true (well, basically if you want a great grade, unless you are genius, you'll be studying like mad in NTU), I don't think such is an ideal valedictorian speech. It's kind of shameful to tell such a terrible university life to the foreign dignitaries or lecturers in the hall. Hahaha... I think he needs to tone down or reword his story a bit. :-)
Anyway now I know what not to say if I were ever chosen to do so. :-)