I think it has to do with the wording of the law passed by the voters. Someone else linked the exact verbiage, but it basically hinges on the wording around ha

I think it has to do with the wording of the law passed by the voters. Someone else linked the exact verbiage, but it basically hinges on the wording around having "completed" their sentence. If part of that sentence was repaying money, then until they've paid it they haven't really completed their sentence. That doesn't cover why the state can't keep track and report out who needs to pay what, of course.