And how is that bad for Chinese gov? That's exactly what the gov wants - total control over peoples lives, over crossborder flow, but the main reason are health codes allowing total control over population. XJP literally wants his China be NoKo 2.0, COVID was just extremely good excuse, if COVID leaked from Chinese lab I would not be suprised if this was the their goal - introducing COVID zero strategy to have control over whole population under pretense of fighting the virus.
Meanwhile my family can't really come to visit abroad (and they are the lucky ones having passports, good lucking getting new passports and being allowed to travel abroad for pleasure), we could in theory visit China but it's too troublesome and risky under these conditions.