Some people simply do not know how to apply disciplinary measures when the situation calls for it. The school administrators considered this to be a "time out", instead of the juvenile crime that it was.
The young girl was CLEARLY the victim of unwanted sexual attention, an event that would have resulted in the firing or civil suit against an adult engaged in similar bad behavior. Since no adults are involved here at the level of the infraction, it falls on those who are in authority as "in loco parentis".
The school authorities were plainly dodging their collective duty.
She was punched and forced to perform oral sex on more than one teen boy. That is CRIMINAL behavior plain and simple.