The article was concluded with “without the WTO it would be the law of the jungle.” It is also addressed in the article that “the mention of section 301 implies the Trump administration might start going outside the global rules of the WTO system.”
If more and more main powers(like US, UK, France) withdraw their “transferred power” back from international organizations they’ve authorized before, it is a horrible trend. It shows distrust to current machinery of global cooperation.