There is no repercussion for Liaison's Office to act in flagrant violation of the rule of law. No one can judicial review what they do.
They do seen to think they are above the law (including the Basic Law).
They now have the absolute obedience of CE, CS, SforJ and the police.
The only things preventing the communists from doing a Tiananmen Square style crackdown are the (1) Stock Market / Banking system, (2) judiciary, and (3) the civil service.
If people from those three sectors start to leave en masse, then Beijing would have a problem.
Beijing is therefore constantly testing people's bottom line and pushing the envelop. It's the good old salami slicing technique they have been using for decades.