The Bahamas are in much worse shape. The utilities are in much worse shape. There is no hope of supplies arriving in the near term. Going to a place where you can get food and water for a few weeks while teams on the ground clear the rubble and recover the bodies makes perfect sense to me. What I don't understand are those who eschew helping those in need when it comes at no cost to them.
I agree - the immediate solution is to help these individuals with their basic needs and medical care. It seems on some of the islands the only solution is to move these poor individuals as their island is completely wiped out. From the sounds of it they don't want to leave their home, they HAVE to leave their home (or lack there of) to survive.
Those of us more fortunate not to be hit by this hurricane can help by providing temporary housing and assisting in rebuilding their homes. Then they will be in a position to return.
Tourist part - the larger resorts will have the insurance/finances to rebuild - I would think they are also invested on the residents that work at their resorts so you would hope/think they would also help financially to get them on their feet again.