They made the choice to defer resolving their debts, and let the interest be added to principal while not making payments.
I'm not saying that the system doesn't do everything it should to help people understand. But the contracts they sign for the money spell it out.
I went through the same, it took me several more years to complete my education than it could have, but living on borrowed money, at the rates that were offered were foolish.
I know my view on this is likely different from most, but reading this article most of what I see is a person, making bad choice after bad choice and then somehow surprised when they are worse off than before.
I feel for the person, as I do for so many that took that route, but it wasn't like they didn't have everything they needed to realize this was a series bad choices.