You're seeing the article as being about the US, but if you see the (modern) US as (1914) Britain, then its other countries warmongering that can draw you in (1914 Britain didn't care at all about a war in the Balkans, but once Belgium and France were invaded they (we) pretty much had to be involved (Britain guaranteed Belgian neutrality and German domination of the french channel ports would have been very dangerous to British security no matter how "natural" the alliance).

History never happens the same way twice, the article is more a warning that the wrong spark in the wrong place could lead to chain of events resulting in a war between US and China whatever their intentions, just as the assassination of an Austrian by a Serb in Bosnia led to Britain (and eventually the US) into a war with Germany 100 years ago.