Hehe probably it's me the one missing something.
I just dont see any offense in making those slanted eyes.
Maybe in some countries they use that gesture to make fun of Asian people, but this is the first time I hear of that.
Anyway, the spanish team loves to play the fool a bit, but they do it together as a team, which is their best asset, playing as a team. Let's hope the US team play like an AllStar game at some point and we get a good chance there