You have an alternate explanation?
NSW players are just plain inferior? Bad coaching?
Everything happens in cycles, ATM QLD are fielding a golden generation of players but I think NSW will be in a similar position in a few years. Once players like Sims, Fifita, James, Hoppa, Cordner, Idris, Loko, McKinnon, Dwyer, James Roberts, Jacob Miller, Kyle Stanley, etc mature abit more I think NSW will be a force again. If you look at that generation of players born between say 1983 and 1987, you can begin to understand why Qld have been so successful. Slater, Thurston, Smith, Inglis, Boyd, Scott, Hannant, Thaiday, Myles, Costigan, Tonga, Shillington, Cronk, , etc all born within a few years of each other, I doubt Qld will ever produce so many superstars in a 4 or 5 year period for a long, long time. Look at players born between say 88 and 92, NSW look like they have a bright future IMO.