Who actually claimed PP14 first? Thanks to the posts here I realized that there exists a case for that being India. If that's the truth, then the entire Galwan incident takes a wild twist in total plot.
After the final piece of puzzle that is the newly released video, I'm very confident to say that the indian side started it first by intruding and building up camp in pp14. Take a look at the map from the indian side itself
You can see that they already start to plan the intrusion since early May, and basically waiting for the water flow to be lower. The second picture dated 22 May shows the existence of a newly built camp in the pp14. The critical indicator in the picture here is that the existence of the bridge, which is as shown in the new video (and previously also shown in the news from our side around July last year in a form of picture) that those bridges are brought and used by the indian, which means that the camp right in front of it is also indian's.
This escalation of course warrant a justified reaction from the PLA, which resulted in the 15 June clash. The river flow at this time is also getting higher hence the causalities from drowning. PLA successfully pushed them back to the other side of the river and taking control of the location, and the camp is dismantled by the PLA, hence the irony of that certain indian for insinuating about 'being forcefully removed'
. PP14 is thus retaken, and both sides then elect to erect temporary walls at each side of the river, as shown in picture 3 of the tweet, dated 18 June, 3 days after the clash.
Last picture of the tweet dated 22 June shows that further basic improvements are done by PLA in the PP14, but since there's no further clashes, it too are withdrawn later. Given the contrast of behaviors between the two sides, everyone can objectively which one is actually responsible for the clash in the beginning, and which one is getting slapped at the end.