I think what he experienced is another manifestation of the same phenomena as zero-tolerance policies in schools; institutions ask their enforcers to suspend common sense and strictly enforce the letter of the law/guideline/etc, even in situations where any reasonable person would decide it made no sense. They do this because such common sense and gut feelings is how bias and prejudice might creep into their oh-so-perfect system.

It used to be that if a teacher saw a kid get bullied and then punch his bully back, the teacher was empowered to evaluate the situation using their best judgement, and punish the bully while congratulating the bullied kid who stuck up for himself. The system sees a problem with that; the teacher's perception of the incident might have bias and prejudice. The system's solution is to have zero tolerance for any violence and punish both students equally. The system's solution to the possibility of prejudice against one student is to ensure prejudice against both students.