... In contrast, the high-profile debut of the J-36 is markedly different from the J-20's case. I won’t speculate on the intentions behind this, but I want to emphasize that the transparency of these two maiden flights differs.
So with the recent test flights, there have been some comments regarding this topic again. From my understanding, the debut of the J-36 was not fundamentally different from that of the J-20. What has changed instead are other factors, such as urban sprawl and proliferation of smartphones. The "high-profile" debut of the J-36 was the result and not necessarily the intention (obviously they should have expected it to be high-profile).