I researched t his recently as some dude on a discussion list was talking about how these things would be good for a home flock, yet he only orders his and never raises them from home stock. He was offering to let others piggyback on his orders, but when I said I would rather order some for myself since he was too far away to visit and asked where he ordered them from, his responses dried up. So, I researched it and found his claims to be bogus. Jeff is right, those are hybrids and will not breed true. To get the same bird, you have to ship them in every year and that just isn't... well, never mind.
As I understand it, Poulet Rouge is more about the system of raising the birds than about any single breed or hybrid. You can raise any breed by those standards, although I wouldn't limit to those but go beyond them. I find them a bit lacking.
The NNs in the program aren't the only ones. I understand the genetics for the Freedom Rangers are also developed for that program.
But the NNs used in the program aren't just about the amount of meat or the skin. They were also selected for taste, something that isn't done with your commercial broilers. So, I wouldn't jump to the conclusion it is either a scam or easily replicated in the back yard. Not everyone is looking for massive size. To some, quality means more than quantity.
Personally, if I ever resorted to shipping in birds every season, it would probably be these.
ETA
Here is a good article on Label Rouge...
http://attra.ncat.org/attra-pub/PDF/labelrouge.pdf