Featherstone chief executive Craig Poskitt says the dual-registration system is "bad for the integrity of the sport".
Rovers, minor premiers in the Championship for the past three seasons, have refused to adopt the system and a partner club, as have rivals Leigh, Sheffield and Halifax.
It has led to much criticism, but Leeds coach Brian McDermott said last week that he believed dual-registration is raising standards outside Super League and is good for the game.
Poskitt told the Yorkshire Evening Post: "It is not working.
"I think from Super League clubs’ point of view they will be quite happy saving six-figures per annum with no Under-20s.
"But it has been bad for the progression of the game and certainly for the integrity of the lower clubs, it is abysmal."
Hull KR have signed Ryan Bailey from Leeds Rhinos on a two-year contract, the day after confirmed that Neville Costigan was leaving.
Week Two of the European Championship saw Scotland come within touching distance of a first ever title, and a place in the Four Nations, while France put right some of their Dublin mistakes against a valiant Welsh side.
England coach Steve McNamara does not have a problem with an Australian referee officiating his team's Four Nations game with the Kangaroos in Melbourne this Saturday.
Palestine Rugby League has gained official accreditation from the Rugby League European Federation (RLEF).