What in game conversations am I disregarding? Fake Hyths statements, the Scions views, Emets speech, the supplemental materials, all fit within an understanding of the Ancients using sapient sacrifices. It's the assertion that they aren't using them that doesn't make sense, and requires ignoring multiple statements by several involved parties and the assumption that these selfsame characters are either incredibly stupid or acting in bad faith.
The clearest way to disprove this is to point to Meteion, who by any definition of sentience meets the threshold. And on the matter of souls, the Lykaons are plainly stated to possess souls. The Ancients may not be able to create souls, but they can create beings the star would give a soul.
It wasn't a fluke it was the whole point. Hermes at multiple points highlights that the goal was to create an entelechy with free will.
Source for this? I believe the Nier event simply stated they couldn't form words, and Emet once again stresses the Sundering doesn't ones body.
And I am compelled to point out that either reading of Emets reliability works in my arguments favor. Either he is not reliable, in which case we can't trust him at all and thus we can dismiss the Nier event and his assertions about the nature of the Sundered, or we do believe him and he disproves the theory that the Sundering physically changed the Sundered to such an extent as to make them mindless husks.
My opinion? He can be trusted to tell us what he intended to do and facts about what occurred, but he can't be trusted to make value judgements given his clear bias against the Sundered. In other words, I think he's reliable in descriptive statements, but not prescriptive ones.
So once again this would mean the writers wrote the protagonists to be incorrect, and then from incorrect premises stumble on the right conclusion about Emet and the Ascians plan. If you want to hold that ShB's climax is founded on this idea then sure, but I don't think this is logical to presume. If however that's ok with others then I think thats a perfectly consistent position to take and have nothing to say but "agree to disagree" for now. But again I hope its understandable why I'm more skeptical of this position.
But those wouldn't be the ones Emets sacrificing. The calamities and the natural lifespan of the Sundered would ensure that, a fact he was aware of and used as an argument to convince us to join him. He'd be being spiteful against random people. I have a sour opinion of the Ascians for sure, but this defies even the logic that I as a foremost member of the anti-Ascian squad (I couldn't resist I'm so sorry) disagree with.
I refuse to believe the Ancients were willing to shove random souls into their ultimate creation. We know those souls would have some sway over the heart, per Elidibus, and I don't believe they would play fast and loose with their savior.