The Art of Gymnastics blog posted a thoughtful overview on the perception of Chinese gymnasts in Western media and general gymnastics fans.
Coaches and judges love Chinese gymnastics, especially Bars & Beam. Every insider I know feels China will be amongst the top 3 teams in Rio.
But I would agree that popular western media a bit unbalanced in coverage.
Read the post for yourself – Body Bias and Micro-Aggression: A Case Study in Lopsided Scrutiny
Shang Chunsong is used as an example. Shang is listed at 1.40m (4 ft 7 in), 35kg (77 lb).
There are many Chinese women this small. Shang’s not underage.

If Bela Karolyi or anyone else hints that she’s underage, he should be called out.
That said, China has deliberately cheated in the past. I’m more suspicious of that nation than others. (I’m more suspicious of Russia as a nation than others when it comes to doping, as well.)
Trust, but verify. π
Thanks Cordelia.