If State does not expedite the evacuation of those Americans stranded, you are right. That is exactly how it will be viewed.
As you read further, you'll see that plans *are* underway. There have been roadblocks and other challenges: Israel or Lebanon not allowing a ship to evacuate Americans to enter port, acquiring a Greek vessel to evacuate Americans, and other factors relating to safety of not only the evacuees but also our military. This is more than an excursion.