I wrote some of the skills that he could improve in prep school but never wrote that those were the reasons for going there.
The young man told me Duquesne recommended he attend prep school to raise an English test score but made no mention of being a non-qualifier. It was to get admitted to that particular school. You can be a qualifier but still not be admitted to a school. Happens a lot at schools in the Ivy League, Rice, Stanford, etc.
His prep coach said he went to prep school because Duquesne ran out of scholarships and that he was a qualifier. Exactly what the reason was really doesn't matter as he will be eligible next season.