You forgot that you went to claim galwan, only to "disengage" half kilometer.
Also you forgot to mention, you went beyond Finer 3, not 4, You were pushed within your own land
You also forgot, as part of "disengagement" , now you have to vacate all the so called height advantage within your own territory.
Most importantly, there is no "perceived territory". Either you have it or you don't. What china says is another matter. Now you can't patrol your own territory. China can "perceive" more territory & push you even further. Already they did vacate their claimed land