I think this article makes the same silly mistake most people do when analyzing other cultures: Overemphasis on national identity. I'm specifically speaking to point four here: I've got family in china, have visited for periods of months at a time, and don't see most people I've interacted with thinking about national identity or priorities mostly at all. Like people anywhere, they're wrapped up in their social lives, careers, and hobbies moreso than any kind of proving china or chinese people are this or that. The author calls out their own bias created by interacting with immigrants and internet culture, which I think will tend to form this lens

This is likely because as the author admits, their interaction with everyday Chinese is mainly through the Internet and cultural products, which has a significant bias.

Chinese government actively shapes the online discourse, so the messaging is already filtered. To make it worse, it meant people found out that the easiest way to silence your opponent is to brand them as anti-China, so you see a lot of pro-China virtue signaling. Finally, people also realized patriotism is lucrative.