To be fair I read another Bloomberg article where thousands of Mainlanders with HK residency are crossing over land the permitted way and doing quarantine:
https://www.bloomberg.com/news/artic...utbreak-widens
It's more likely than not that Hong Kong has a full lockdown in the near future. COVID concerns aside Hong Kong wouldn't be that much fun to live in right now (restaurants closed at 6pm etc), I don't really blame people for leaving