Every Mercosur member (plus Chile) are in the FIFA World Cup Round of 16

Am I the only person to notice this fascinating geopolitical coincidence?  Brazil, Argentina, Uruguay, Paraguay, and Chile all made it.  It's abundantly clear that I have no knowledge of soccer.  As such, I will henceforth root for Paraguay as it is the most obscure country of the bunch.

Mercosur (plus Chile), aka the Southern Cone