what did people expect from china? Years ago the Chinese government made their position in relation to cryptocurrencies very clear, today people should not be surprised by these decisions because they already knew that in the future this would happen, the Chinese government never gave any hope of change in relation to seeing well the cryptomedas. we are talking about the Chinese government, that government that all of them must be controlled, all things must be Chinese, an anti-democratic country that restricts people's rights. could not expect good things coming from china.
You just described all governments in all countries in all history, not just Chinese government!
Besides it does not surprise anyone that some government in a country did something that was against bitcoin, they have been taking actions against bitcoin for years now all over the world. What surprises us is that people still believe the FUD that tells them "China controls bitcoin" so that they can continue that with "Power outage in China == bitcoin death" and then they panic sell!
You can see some data around the web about 24h change hashrate:
Antpool 16274 phash -29,22%
Poolin 12068 phash -17,46%
Binance pool 11581 -19%
Btc.com 12530 - 14%
This is the data to 19 jun 2021
Seems to be in sept 2017 with the ban of the trading