[PeterisP]

Obviously if the cargo has any value, then the result is simply a higher freight cost than originally expected.

Yes, it is likely that cargo owners will have to pay extra to get their cargo delivered where they want - they have paid for a service, Hanjin won't provide that service, and anyone else will require payment for that same service. Even if the service (or a part of it) is practically unavoidable e.g. the cargo is at a ship and needs to be unloaded, so someone needs to pay for the loading. Maybe they have insured that, maybe not, but they can get their cargo anyway if they want.