From the article:
"The reality, however, is that the complicated, often exasperating, relationship is less about friendship or political bonds than a deep and mutually uneasy dependency. Nominally allies, the neighbors operate in a near constant state of tension, a mix of ancient distrust and dislike and the grating knowledge that they are inextricably tangled up with each other, however much they might chafe against it."
Well if that's the case, and the Chinese don't care much for the current NORK regime, they should be relieved once we go in and neutralize it.
And they should welcome the trading prospects of a unified Korea afterwards with the United States withdrawing most of its troops from the country...