No, they are indeed abusing their privileges. Their original "mission" was to target the protesters, but they attacked anyone they saw, including the commuters. That damages the HK government's international reputation. Multinational firms are going to reconsider investing in HK if they do not have confidence that the government can control these gangs properly. How do these firms know these gangs will not target their office next? Or their retail outlet? That may not be their original purpose instructed by the CCP operatives, but these gangs can use to opportunity to extort, attack or destroy other businesses who just happened to be "in the way".