Part of the difficulty in dealing with the CAAC is that it is quite opaque and does not explicitly indicate the rights of airmen (or airlines). There is no way to get reconsideration or review if an airman disagrees with a CAAC decision. Getting your own tests done and showing them the results changes nothing.
Likewise, when the foreigner got in trouble at Juneyao, the airline was not able to say its side or appeal the punitive edicts. China is a place where "fairness" in government is just a theory, and much of the top - down rulings are arbitrary.
Until there is reform, the best survivors stay under the radar. Use diet, exercise, and over the counter medications to keep the numbers in line! No joke, you can at least manipulate cholesterol and blood pressure results a few weeks before a medical.