It's hardly remarkable. Student loans are originated without regard to credit risk, at the same interest rate for all borrowers. Moreover, pretty much every student is eligible to declare bankruptcy soon (and often, long) after they graduate. Requiring loans to be freely originated on one hand, and permitting people to discharge them in bankruptcy on the other, would be completely unworkable.

As to why we require loans to be originated without regard to credit risk: if we took credit risk into account, disadvantaged groups would get student loans at drastically decreased rates. That, in turn, would undermine our bipartisan narrative that the way to overcome all the bad things America did to certain people is not to fix the resulting problems, but for everyone to get a college education.