I have heard that allegation on the video of a competing fifth wheel, however, Forest River was not mentioned by name. The actual warranty information is very limited and don't have it with me.
From personal experience, doubt that this is true. I bought a Flagstaff Ocotber 2011 and traded for a Columbus last month. Even though my Flagstaff Extended warranty stated, "Not Transferrable", the Flagtstaff advisor got with the Forest River overall advisor and made it happen, transfering the Extended Warranty to my Columbus. Pretty good sign considering he had nothing to gain and gives the appearance that the company understands customer service.
He gave me the Palomino Warranty Advisor's name and number, I would suggest calling him to confirm. If you do, please post your results. His name is Bryan Randle, 574-821-1487.