Long time ago I hear, the F18's that we bought from the US, had some odd limitations in technical documentations.
Some circuit board functionality, IC IO's and the IC's internal silicon chip areas descriptions were completely missing.
Now days plenty of the IC's are made in China, the ASIC's included so, who knows, what kind undocumented characters THOSE chip may have..
Lets combine above with the Chines typical very long term strategic planning...
No, my tinfoilhat is not too tight