If you can get 10% of the weight down in a week, that is still better than not having the 10% gone. If you can do the helicopter offloading without blocking any other progress, then why not do it immediately?
Sounds like efforts are going into offloading fuel and water tanks while they continue to dig up sand.
Losing a few percent of weight in cargo is worth it.
But in real life these things aren't optimal ;)