Surely the argument is that the rule is impossible to enforce? There is no requirement to release players 10 days before an international, which would have been necessary for them to play the match. Therefore either the clubs are expected to make a gesture of goodwill (like that would happen) and accept their players are unavailable for the best part of 3 weeks, or the players are obliged to break the law, which is obviously not an acceptable argument as, correct me if I'm wrong, the law takes precedence over FIFA rules.
In fact isn't that exactly what the Argentina players did (break the law) and the Brazilians were quick (or slow, depending on your viewpoint) to shut the game down as a result of that.
This shouldn't even be a discussion