It was only the latter person who left, but the Chinese mine owner will not leave. Because they have mined a large amount of XBT coins using the SV1 protocol, and are continuously unlocking them every day. They are also selling a large number of XBT coins every day. Their power cost is very low. Moreover, they have sold a large number of XBT coins before, and have a lot of USDC as costs to maintain this 45-day lock-up period.
You have oversimplified the Chinese mine owners.