Of course the US hack the Chinese govt. Just because china don't publish accounts of attacks does not mean attacks are not occurring.
We already know Google are quite jaded towards China given their failure to succeed in the china market. Thus I take anything they comment about China with a grain of salt, given they clearly have an agenda.
An attack originating in Jinan does not necessarily mean chinese govt either. Given China's opaqueness on cyber issues, anyone wanting to hack anyone else could use china as a place to do it.
Though I agree, governments should invest in educating people on phishing scams.