This is very scary. It sounds like the kind of talk I hear from other Chinese ex-patriates in the States. They downplay the U.S. victory, and simultaneously heap contempt on Japan for not finishing the job...and being more thorough.
The implication is that Chinese military thinking, in the realm of pre-emption, emphasizes greater thoroughness of the attack. And hitting us where we really live. Also implies since they want to hit us where we live...that they will be exceptionally cautious not to commence hostilities until they ARE ready to finish the job... It would also put a premium on their keeping their enmity down-played. At the very least until the punch is delivered effectively. And even then the big attack may be via circuitous means. Which would give them plausible-deniability to confuse and deter our leaders from exercising our surviving retaliatory capability.
If this article is legitimate, it puts the Chinese military buildup and their willingness to provide us with everything we need for pennies on the dollar into perspective.