Ultimate Hypocrisy Exposure
WideScreen
While there's no valid disputing the overall contention you've advanced - namely, the current government of mainland China does not start from the premise that the "rules-based international order" applies in the first instance to their country or its actions - in this particular case, there is an important qualification that IMO must be attached.
For six years, ICAO's Secretary General was a veteran aviation lawyer and diplomat from China (2015-2021). This SecGen possessed and applied great knowledge, insight, even charisma. And: the SecGen though not representing the PRC as a Member State, nonetheless was (again, IMO) highly representative, or symbolic at least, of the entirety of China's civil aviation sector, domestic as well as international. And would you guess what this SecGen's most consistent, and probably most forcefully if not also persuasively articulated theme was during her tenure?
Standardization. The critical importance of standardization. (This SLF was in the audience for several of the SecGen's addresses and appearances, in fact.) Not least, the SecGen had risen through other roles in the Secretariat, with distinguished service. After some long years at ICAO, her official pronouncements *should* have been consistent with China's policy.
So despite rhetoric to the contrary, and even, despite the linearity of the Western concept of precedent, by its current actions China has set a precedent the entire world civil aviation sector can see and recognize. Its participation at the highest level of ICAO was just an act - one performed with high fidelity by a wonderful and accomplished individual - but as far as national policy of PRC is concerned, just a dramatic imitation nevertheless.