Someone has a serious lack of sense of irony.
Inciting hatred of China's central government and Hong Kong's regional government are now offences under Article 29
Whoever decided this clause was a good idea has just made the case for the government to arrest itself. It is this law which is causing hatred of the government, not innocent HK people making chance remarks which can be twisted by secret police to make them guilty of thought crime.
Oops, I guess I will now be arrested if I ever go to HK.