So many teachers (so many people, for that matter) are just coasting, doing the bare minimum to keep their jobs. Students are customers of the education system and I'm glad this guy spoke out.
Of course, based on youtube comments, which may or may not be true, the knee-jerk reaction of the school was to suspend the student. Just goes to show that, for the most part, school doesn't teach you to think. It teaches you to listen and follow instruction. Disobey by criticizing the system and the system kicks you out for falling out of line.