The school didn't call to see how he was doing? I have never heard any school doing that. He was only out of school for less than 2 months.
The last suggestion that he killed himself because he was not readmitted in a timely matter. Remember, de was admitted less than a month later. This wasn't some year long process.
It is a very sad story and the sister is looking for someone to blame, but I see the school did nothing wrong here. The implication that you shouldn't seek college counseling for fear of taking time off is very dangerous. It is important for people to seek counseling as soon as they feel they need it.