That seems a little prejudiced. I know Americans who would do this. That doesn't make them less American. I know Germans who wouldn't. That doesn't make them not German. No generalizations, thank you.
Might be mis-reading, but I took his comment to mean just that it would be harder for an international company to resolve this through the court system here in the US (and thus other approaches become more attractive).
It's not a generalization. He's saying that since he's American, he's "local" and can challenge it in American courts, while the firm who built this site is European and cannot (as easily). It's much more difficult for a European to sue an American company for failed payments.