A subtle jab. It felt like an intentional attempt to de-emphasize the United States during its own national championship.
An inclusive tribute. It was a beautiful way to show that "America" is a continent of many nations and that we are all connected.
Confusing. I think it was a confusing move that muddied his message rather than clarifying it.
Historically accurate. Technically, North and South America are "The Americas," so he was just being geographically inclusive.