So I was going to let sleeping dogs lie here, but... well, as fatigued of these discussions as I may be, I am more fatigued by one side (and I apologise for using the term here when the notion of "sides" in the first place is so reductive and ridiculous, but it's easy shorthand for "people basically satisfied with the story" and "those who took issue with it", so please bear with me) constantly and in very bad faith trying to make a joke out of the other's attempts to explain themselves when for months now they've taken great care to put forth their reasoning in a fair and level-headed way, so I'm going to acquiesce to the request of a counter-perspective to the best of my exhausted and brain-addled abilities and explain.
To begin with, I do have to echo the sentiment that your post does come across as rather condescending and disingenuous at first read, but if you truly have been by and large absent from the forums to the extent the backgrounds of these discussions are foreign to you, and possibly have not read through this what's been posted here (even as I struggle to fathom why), then it becomes a little more understandable - though you also do a disservice to the posters here by not first attempting to gain some insight into the current context of these threads, even as... well, fraught as they can get since Endwalker's release.
And I do have to be brutally honest, in that you do seem to be making a strawman out of the "opposing side", as it were, because the people whose viewpoints you appear to be attempting to summarise... do not exist in any context around here, and if you feel they do, then what you've said isn't so much a (still baffling and pretty insular, I have to say) misunderstanding but a wilful misread of everything that's been said thus far. Maybe they do exist somewhere that you've encountered them (and for that I can only apologise), but no one, and I mean no one here was ever condoning the Ascians' actions or hoping they would be "vindicated", nor are they merely "sad" their favourite characters "lost" (again, kind of patronising), and automatically expressing sympathy as if the concerns being expressed are inherently the result of some poor soul's misunderstanding of the game's narrative rather than considering the possibility the story malfunctions from a logical perspective, is well... really patronising, yeah.
As I said in my very original post here, I enjoyed the Ascians because of how diametrically opposed they were to us, how from their perspective they had every right to be, and the moral complexity surrounding the two sides in the story. I enjoyed them as characters, like you, for their depth of their characters, their flaws, and their fundamental humanity. I enjoyed their individual arcs, and respective (pre-6.0) endings. Contrary to belief, I did not actually want the corpse of Emet-Selch's character dredged up from the dead, sucked dry of any poignancy his farewell left us with and made a mannequin for a fun spot of fanservice any more than I did Elidibus'. I resented their return and what felt a very laboured and unnecessary concession of Hydaelyn's actions and her methods not because I believed they were right in the first place or they're just so gosh darned handsome (I mean, come on, really?), but because it felt at odds with the characters we had come to know, with very little to gain but to paint a garish smile on the Sundering itself and force something resembling a happy ending so that we don't have to feel so guilty for what was done to the Ancients. I don't think the story did enough to adequately justify what Venat did or why her particular brand of wiping a race from existence is that much better than the Ascians' own, (which I do not agree with either, for the record) and they ultimately failed to convince me why one was necessitated and viewed as beneficial whereas the other was a senseless, vindictive crime.
And I really resent the remark that said empathy towards the Ancients is down to some pithy generalisation that their beauty and "perfection" (...that doesn't exist, nor has anyone claimed it to, and you would have to have read the story with something sharp jammed in your frontal lobe to have missed the clear story beats on why they were not perfect) is innately more appealing than the "messy" Sundered, and all of the charming implications towards my character that comment entails. I've never not identified with the Sundered, and I have never not wanted them to survive. But I'm also capable of sufficient empathy that I don't believe the Ancients should have been consigned to death either, and after spending 5.0's climax refuting the notion that any one race is somehow more entitled to life than another, and expressing the importance of the right to self-determine, 6.0 felt like a series of inexplicable Well, That Happened moments with regards to the writing that frankly felt like the devs were so hell bent on cutting their chosen path to deliver that all important Inspirational Message in the final arc that they missed the total lack of self-awareness and rampant hypocrisy that the story was leaving in its wake.
Now, perhaps my views are extreme, or misplaced, or simply incomprehensible to you, which is fine. I'd be lying if I wasn't left puzzled by anyone who came away feeling Endwalker was well-written or thought-provoking for the right reasons. You don't have to agree with it, or even engage with it, and I have a feeling we occupy fundamentally opposing viewpoints to the point that I doubt we'll find much in the way of common ground - the story has more or less driven me off at this juncture, for one - but refusing to acknowledge that perspective and choosing to place the fault for any disappointment with the player for not perceiving the story correctly or putting it down to some really juvenile reasons isn't just unfair and dishonest, but insulting on the face of it. Just something to consider.