She tweeted that she supports the HK police. I don’t see how ANYONE, even Hong Kongers would consider that anti-HK.
The Police are caught between a rock and hard place. They have to keep the peace, protect public property and still deal with rioters.
It does Hong Konv protesters no good to be anti-cop and view them as the enemy. You lose your moral high ground that way.
They are the frontline defense between peace and order vs. anarchy.
The “support the HK police” slogan was invented by the Party and denigrates the protesters for beating up a couple of police infiltrators.
It is intended to rally support to the Mainland government position, and a lot of Chinese artists have endorsed it (probably after being pressured).