Maybe you'll have more luck in expressing this to our fellow FReeper expat-panama, who persists in claiming that it's not. I'm just a southern textile yahoo and a nativist to boot, what would I know.
The way I see it, the yuan-dollar link became much more tenuous once the governments of China and Australia announced a few weeks ago that they would conduct their trade directly rather than use the U.S. dollar as a medium of exchange. This basically means that for those transactions between China and Australia, there is no bearing on the value of the U.S. dollar anymore.