Because the man goes on facts and not knee jerk reations. In addition, having the President show up at the affected areas takes away from the rescue effort and causes problesm for those involved, ASk anyone who ever has been involved with such a relief effort. Best thing the Pres & high ranking officials can do is stay out until critical needs are met and there is time to provide the logistics for other things.
BTW, he is the Commander of the Military, all those ships & troops move on his command. So he is doing something.
He's already sending in the Marines.
Funny how the MSM missed that.