That article is too focused on housing and land prices. It fails to see that the backbone of China's economic growth, its manufacturing sector is very strong. Bottom line: there is no ponzi scheme when China's government has a surplus every year and they do not have any national debt.
https://www.cia.gov/library/publications/the-world-factbook/geos/ch.html
Budget:
revenues: $972.3 billion
expenditures: $1.137 trillion (2009 est.)
Public debt:
18.2% of GDP (2009 est.)
country comparison to the world: 109
15.6% of GDP (2008 est.)
They do have debt.
Also, from Forbes...
Signs of the times: government bureaucracies funding themselves by foisting debt on state-owned business enterprises; local governments raising capital by selling land at sky-high prices to corporations they own; and a People's Bank of China lavishing liquidity on the entire system in a way that makes Federal Reserve Chairman Ben Bernanke look downright stingy.
This debt is "hidden" inasmuch as it's not reported in those CIA numbers.
Also, by clinging to your belief in Chinese effectiveness and efficiency, you put yourself in an unenviable position of promoting and defending an economy that is in large part controlled by the central government.
http://blogs.worldbank.org/eastasiapacific/state-owned-enterprises-in-china-how-big-are-they
The Second National Economic Census conducted in 2008 reveals that of all the 208 billion trillion* RMB total assets of the secondary and tertiary sectors (industrial and service sectors), 63 billion trillion* or 30 percent of total was held by SOEs. (SOEs here correspond to state-owned enterprises and state sole funded limited liability corporations in the Second National Economic Census.)
It makes "Government Motors" look like child's play.