I also think that this news is more like gossip and speculation,so here's my two cents.
I think that crypto mining was banned in China mostly because of the energy consumption.
There was a short term energy crisis in China and they had to cut all the energy consumers that weren't considered important.Now,the energy crisis is solved and China has enough electricity,so they might want to bring back crypto miners,because the crypto miners are buying electricity and no electricity provider wants to lose customers.However,this is just my speculation about the subject.
Most likely China doesn't want to allow crypto mining,because they don't care or they simply hate cryptocurrencies and want to clear the space for their digital yuan.
we have learned by all other countries.
governments dont care about bitcoin impact on their fiat. they have tax, minimum wage, legal tender laws to keep their fiat active and priority. bitcoin wont replace their fiat
as for energy. since 2014 bitcoin mining has not been a 'environmental harm'.. most chinese mining farms used renewables from the beginning. they also were not "taking" electric away from residents because most farms were buying from the "excess" allotment not the residential/industrial allotment. this scheme of buying the excess was actually making a hydro power plant more money to then upgrade/expand because without buying the excess, the power would just go to waste.
its like having a vegetable farm. where by supermarkets only buy the quality veg, leaving the wonky veg. then a food producer buys the wonky veg. the act of buying wonky veg does not take anything away from supermarkets.
what china do not want is the residential hobby miners trying to run multiple asics on residential electric networks. causing brownouts.. so my two cents are mining licences which ban anyone from mining more then 3kwh from home.. and require a business licence and industrial electric contracts if they want to be farms