The actual offense isn't important, nor is whether they arrest me or just kick in my door and look through my stuff. What matters is that if I'm not in China I don't have to particularly care what Chinese officials think about me. My local police can kick in my door, Chinese police can't. At least as long as I stay out of China
As a matter of fact, there's been multiple reports of the Chinese doing informal, heavy "policing" of their own citizens abroad. Even if you aren't Chinese or linked to China yourself, this does affect the strength of that particular argument.