On the contrary, I would say their economy is maturing with domestic consumption becoming a dominant portion, their production methods are becoming more efficient as labor costs increase, their production scale is second to none, their educated and motivated population is poised to bring a new era of innovation and entrepreneurship to China.
And for the record, "communism in China" is already dead.
In response to the article, China's balance sheet was worse in 2004 before the triumphant expansion of the last 7 years. I had doubts they could outgrow their debts then. I have doubts today, but fewer.
China is controlled by the smartest, most effective technocrats in the world. Don't underestimate them.