True, right now futures are not under the SEC. However, with the introduction of single stock futures (working their way right now through the necessary channels) the lines will be blurred and potentially the SEC could argue or muscle its way into regulating the futures market.
Just my humble opinion. I don't know how long the CFTC can hold on to things. Especially with the clamp down mentality at the SEC right now. Don't think its paranoid to entertain such thoughts. If it does happen it will be well into the future.