Or are they just saying, oopsie, your costs are your own costs due to this lost cargo, we will not recompensate.
Or are they just saying, oopsie, your costs are your own costs due to this lost cargo, we will not recompensate.
You can (and probably should) have your own insurance that will pay you in case this happens. The insurer can pay cash to the cargo owners ASAP, and then sort out the equitable sale of the actual cargo and distribution of the proceeds. Kind of like a bankruptcy for a ship’s voyage.
If they have to wreck some stuff to save everybody else, and that works, everybody else has to pay something. Fair-ish, but I suspect Insurers start to call foul on Evergreen’s repeated groundings.
GA means that if due to some issue they throw away half of the cargo to save the other half (which is a good thing - you want them to be permitted to do that without going bankrupt, because otherwise there is no motivation to save the half that can be saved) then instead of some people getting their cargo and some losing it, those whose cargo was saved pay a proportional value to those whose cargo got thrown away, so after the settlement all of them get the same average lost cargo value.
You also don’t want them to have any incentive to treat one customer’s cargo more carefully than another’s. You want them to jettison cargo indiscriminately with the only incentive being to save the ship.
At the scale of these ships, though, if you have to jettison cargo you're probably looking at hundreds of containers or more. At that point it probably doesn't make that much difference which containers you jettison, it'll mostly average out.
Basically, if you declare a value that's too low, you don't get enough money when your cargo gets thrown overboard. If you declare too high, you pay more, if somebody else's cargo gets thrown overboard.
The beauty of General Average is that (in insurance terms) the thing you are insuring is also the premium you pay.
The idea is that the crew should not be put into a position where they argue which cargo to jettison, and the customers should not have to care about the position of their cargo on board. Averaging out partial losses makes everyone's interests align. If all cargo is lost, the result of following the process would be identical to everyone losing the value of their cargo.
Costs from environmental damage are excluded. Some of the salvage operations are included. Not sure if it's limited to the value of your cargo somewhere, but it doesn't seem to be a risk of unlimited liability.