Not sure if You know the original report and he indeed misquoted me or - IMO even worse - gives a hint to a wrong conclusion:
1. My original report said nothing to manoeuvrability but I said "...at least until the planned WS-15 engine is available. In the meantime, the J-20's engines are probably adequate and will provide flight performance at least comparable to the latest J-11B fighter." (in quote 3)
Even worse he did not differ between a Su-27 and Su-33 ...
2. Also he implied another conclusion: “As for the development of a genuine 5th generation combat aircraft, China obviously has a long way to go.” This is an apparent reference to China’s problems developing advanced engines and avionics. (in quote 5) This was also meant regarding the still not available WS-15.
3. And finally ... (in quote 8): Andreas Rupprecht writes “The J-20 is most likely no match for the F-22 and the F-35…” Again a misquote: My original sentence was ... "As regards to stealth the J-20 is most likely no match for the F-22 and the F-35 (see the non-stealthy engine exhaust, the uncovered countermeasures launchers and other details)."
And here I'm indeed not wrong that these issues are points of concern...
Deino