Indeed I agree.
Imo, there are pro and cons of so called "living with the virus " and "zero covid" strategy. it includes financial and economic factors which should be out of scientists consideration.
Med scientists and doctors should based their decisions and opinions on scientific facts. Best case is working as a team. scientists stick to medical science. The economists stick to economy related research. and government seek their advise and make a decision for society and nations greater good. If it actually benefits the nation (economy, manpower, expenditures etc) with opening up when vaccination rate is deemed good enough especially with delta variant circulation and keeping hospitals from being overwhelmed and death rate low then I think China government will take the advice.
No, the Chinese government is unlikely to open up controls because of 1. public pressure 2. propaganda value 3. Existing economic gains.
US is back to getting +100k cases per day with 300-700 deaths per day. That is a worse situation than August 2020. The more cases you have the more probability of mutations that resist the vaccines, such as the delta variant. In contrast, China boasts only a few hundred cases total.
At this time, the Chinese public will never accept a solution that isn't covid zero. Even with a covid zero strategy the economy is booming, thus there's no need to take a massive public health risk just for a few percentage points of economic growth. Any loss of control of covid will mean heads on the platter while nobody will even notice a few percent GDP. You must clearly misunderstand Chinese people. For Chinese people health is always #1.
In addition, the propaganda value of being better and caring more about people's lives than certain foreign countries is a massive boon internally and in neutral 3rd party countries. The point isn't to convince hostiles, it is to convince your own population first and neutrals second.