Well, for all those that missed it, Trump wasn't elected to maintain the status quo, so the US position vis-a-vis China and Taiwan could well change.

What better way to send a signal to the guy who's been bullying himself around Asia in recent history, and quietly, or not so quietly, buying up Africa, than to say, "Its a new day with Taiwan."

China isn't going to over-react on anything like this that Trump does. Oh sure, they'll stir up little dust clouds, but they won't forego their trade with the US over a man who at most will be in office for 8 years. Measured in terms of the typical Asian 1,000 year view, 8 years is nothing.