Nope, Absolutely positive that is not correct. Rockets are made by Britich Hifi speaker company Onyix now. Sold through AV123.com. Swans are still made by their original manufacturer and sold through Audioinsider.com online. Had similar beginnings though. Rockets were largely based on Swans Diva line but with many technical upgrades made to them. By the way, if you want to pick up some Rockets, they are having a tremendous holiday sale on end of year inventory.
Swan Speakers preceded Rocket and continues to this day. The Rockets may share similar cabinet style to the original Swan Speaker design but there is no other association between the two companies.