Its pretty silly to say that FEMA allocates funds on an objective basis. The process starts with a State asking from money then the President declaring that there is in fact a disaster. Unless you are going to convince me that Trump would do that objectively on account of FEMA existing......
Does FEMA have to exist for any of that to happen? When was FEMA created? How was it created? If its by law then he can't get rid of it by executive order. How was it handled before FEMA?
Now, granted, I have no expectation that Trump is doing this for anything other than spite or self-dealing, still, getting rid of FEMA. May or may not be a thing of significance. Like getting rid of USAID, the State department still has to spend that money. Sometimes they have discretion sometimes Congress has said what to spend it on. In the case of USAID, its existence was ratified by congress, so in that case, the president can't even legally get rid of it. Haven't heard about any lawsuits regarding that though. Standing would be difficult to establish which is pretty stupid but there it is.
Could also be because of this:
Relief workers were reportedly surveying hurricane damage in Florida.
www.snopes.com