I thought they got rid of the Nationality requirement to try to help teams that could use help. Teams like China and Japan. I think some other countries could use the help too but I'm not naming names.
So it actually brought the cup to a more even playing field by getting rid of the Nationality requirement.
Personally I'm on the fence. I've seen how it plays out both ways. When you put the requirement in place it does make for a lot of fudging on the rules. I don't like to see that. So open at least you don't have all of the fudging like the Olympics. I also hate to see that our American team had to use a bunch of Aussie's. Nothing against Spithill or Coutts. Great guys. I'd just like to see Americans win it themselves.