Another ridiculous article, China has been the  "Asian power" for you-can't-remember time without American endorsement. They even beat American in Korea back in 1950s.
Chinese don't need American key, they're already the no 1 trading partner with all countries there you mentioned. Climb out of your cave.
Whatever Trump does or says, he can't shake fundamental fact there. So his role isn't that significant, good or bad.