Perhaps one of the more crusty skippers needs to reply with your question: "Yeah, thanks Center, but what do you actually expect me to do with that info?"
Begs the question, if you are out of options for suitable diversions and the RFF cat is below legislated requirements, do you declare MAYDAY [RFF] or hold hoping it comes back up until you declare MAYDAY Fuel? Otherwise you're breaking "the roolz" and you can't break the rules unless an emergency exists, right?