the law doesn't make room for proration. There is prob some room for a judge to side with students after protacted litigation, but the university is banking on

the law doesn't make room for proration. There is prob some room for a judge to side with students after protacted litigation, but the university is banking on them leaving and not earning the fringe benefit, (and therefore, willingly foregoing the fringe benefit making the university not liable) so it probably matters little.