This issue with the "body count" has little to do with FEMA and everything to do with the competencies of the Puerto Rican authorities and their pre-disaster preparations.
Standards, training and competencies are all being called into question. It is events and reports like the above that calls into question our ability as a nation to handle multiple disasters simultaneously, and in a competent and efficient manner.
Looking at the United States from afar, I think some of the luster may have worn off our shinning armor of emergency management.