A very strong piece by Rachel Aviv in The New Yorker.
The facts here are very complicated, so I can't summarize it or excerpt enough to enlighten you about this particular case. So let me quote one part near the end that says something more general:
One of Mackenzie’s professors, Anne Norton, who teaches political science... told me, “I cannot avoid the sense that Mackenzie is being faulted for not having suffered enough. She was a foster child, but not for long enough. She is poor, but she has not been poor for long enough. She was abused, but there is not enough blood.” Penn had once celebrated her story, but, when it proved more complex than institutional categories for disadvantage could capture, it seemed to quickly disown her. Norton wrote a letter to [Amy] Gutmann, Penn’s president, warning that the university had been “made complicit in a long campaign of continuing abuse.” Norton says that Gutmann did not respond.