Does it matter to the story that it was a black fraternity?
The fact that it was left out of the story was intended to smear all fraternities. Black fraternities are notorious for beating their pledges with paddles until they bleed, suffer broken bones, etc.
Any serious hazing in white fraternities was stopped over thirty years ago. The black fraternities have been "hands off" and have continued hazing as much as they liked.