Totally agreed. Rafa has cried many times after winning. I remember his first French Open win... NO BIG DEAL!!!
I think you are missing the point. Few people are criticising Roger for crying. What criticism there is, is about whether the crying was occuring at an appropiate time. I don't think anyone could seriously have any problems with a player, be it Federer, Nadal or someone else, crying after a huge win. The circumstances here however were quite different and I would certainly regard a debate as being quite reasonable.