The internet is largely predicated on American law, because so much of it has been invented by Americans.
The EFF, Creative Commons, FSF - they're all based in America. The licenses they write are based on American legal concepts.
It's interesting to see a Czech CEO commenting on (and quoting) and English translation of Chinese law in the context of a license written in America. As he points out in the thread, AGPL is unenforceable against a Chinese company if China doesn't recognize the rights AGPL is predicated on.