Point is article is pointless. It's like asking why did tigers shed those big-ass fangs they used to have when cavemen were roaming the world...
Gonzalez got a permit and played. Leto is the player he's thinking of. He was with us two or three years but never played for us because of not getting said permit.
Football clubs and markets have evolved in a restless way we are familiar with. And their evolution is out of the reach of central planning or intelligent design advocates.