They provoke because in their hearts they are not yet ready to accept an inferior position. As long as the US stands and retains it's global standing, all Anglos believe that they share the same status by association. Thus, countries like Australia see themselves as at least China's equals, because the US currently is.There seems to be one gigantic flaw with this position. I think it's fine and even responsible for powers to be concerned about what a growing superpower might do as it gains more ability to exert its strength. However, it's a terrible idea to navigate this superpower by provoking it. So far, Australia has been lucky that China is almost infinitely patient and hasn't gotten too upset so far, but what the hell would Australia do if China decided to bear a grudge?
When the US loses it's position, there will be a short duration of teeth gnashing, before acceptance sets in. At that time, for Australia at least, there will be a reconciliation of all the lessons put upon them in the last 15 years, and they will face reality and admit "we were wrong".