"HUUUUUR Y R WE NO HELP THE ETHNIC AMERICANOS HUUURRRR Annoying Orange IS RASIST."
Any other president would be like, "OH MY GOD NO :(". And the same response would be happening. Annoying Orange isn't king. Government is a living, breathing organ of bureaucracy. We're already doing the max we can reasonably do as a government. The USACOE is already there (since, what, Irma?). FEMA is working their asses off. The private sector is responding reasonably well.
Puerto Rico is such a stuff fest right now because they're poor as forget. Their infrastructure is stuff and because of its stufftiness Maria blew through and inserted her clit right into PR's starfish. When your power system can be forgeted forever (they can't repair, they have to literally replace it) because of one domino, you should check yourself.