Ok
a bad government is not better than chaos. Should the KMT have remained in power? Certainly would’ve been less chaotic than a revolution, but then where would we be today? Should’ve the Belorussian partisans just accepted German rule for the stake of stability? Of course not.
As far as Chinese interests are concerned, a bad government in Myanmar is better than chaos. Which is not the same thing as talking about the interests of Burmese citizens. Interests of foreign countries are not the same thing as interests of domestic citizens.
For example, the US would certainly have preferred the KMT remain in power.