Imagine if during the Koi Tower scene, where jiggy reveals to everyone the MXY is actually WWX since he can pull out that sword
And JC, wanting to add more people into his believe that WWX is back from the dead for real this time silences any dithering people wondering if someone pulling out that sword really means that they are WWX and he goes, "Yep, Suibian really sealed after Wei Wuxian died" He then approached jiggy (who for plot reasons is holding a sheathed Suibian, maybe to prove to people that it is actually a sealed sword) grabbed the hilt and tugged "No one who's not him can unsheath-" falls into nhs as Suibian unsheathes.
jiggy is rebooting because what? (so is nhs, because this time he doesn't know he really doesn't know) and the cultivation world is back to square one saying that there is no way MXY is WWX and how wicked WWX is for fooling everyone into thinking that that sword is sealed.
Jin Ling doesn't stab WWX because this is another false positive case of jiujiu asigning Wei Wuxian to a demonic cultivator and he's honestly tired of it atp.
JC is having emotions about Suibian allowing him to unsheathe it, and then gets angry for having any non-negative emotions about WWX and is just a mess in general