INITIAL IDEA -- Set up a firewall rule to keep FMS from phoning home.
UPDATE: Later I read that keeping FMS from phoning home could make it stop working or, worse yet, getting a call from FMI sales. Therefore, the idea of using a firewall to stop phoning home ... evolved over time to appear to not be workable from that new information.
I can not find where FMI states, in writing, what it uploads and states how I can OPT OUT of that data collection.
Windows 10 is another prime example you can't disable phoning home (except Enterprise version) where the first part of any Windows install is a registry hack and firewall rules creation.