@Pat Looks like that article is from 2020. It's far from succesful nowadays. Kinda funny how that turns out.
What's the current infection rate and death rate in China? What's the death rate in the US and Europe? How many people have died in total in China versus other countries? Who is more free to go where they want, a Chinese citizen living in a relatively virus-free country, or someone in the US who can't walk across the room without losing their breath?
How do you measure success?
As a pro statistician I can say this is a very common failing people apply to tons of subjects... You can **not** compare absolute rates between countries and presume it is the result of a policy, thats considered invalid analysis.
When we analyze policy we look at the rate of change in the background incident rate immediately following a change in policy. You must compare the country to itself at an earlier period before the policy was adopted. It is the only way to reasonably hold most other factors constant.