To be very honest about my emotional reaction: I went into Elpis already disliking the Ancient Amaroutine society as presented and severely doubting that it was a utopia or frankly a place I would want to live, and after not just the MSQ but the third side-quest with the microaggression dehumanization of my WoL (and almost every other character in this game) as a familiar, plus the questioning from Hermes, that feeling of dislike deepened.
The use of creation magics to create creatures out of desires to follow fads, personal amusement, and advancement and then dress it up as good for the planet (and that the vetting process of the Convocation struck me as something that their culture thought was objective and rational while in truth was not) while admitting that said creations would gain souls beyond their control not deterring the readiness to delete said 'playthings'... That their role as stewards of the planet and god-like framing came across as both self-appointed and arrogant. Their emphasis on their lives only being worthwhile to complete some purpose and then willingly die also rubbed me wrong.
The hypocrisy around their expression of conformity in attire to avoid jealousy and then manifesting those in their creations away struck me as hilariously realistic, not to mention the emphasis on hair - attend or teach at a school with a school uniform and the amount of focused expression on the few articles of clothing one is allowed to personalize makes the parallel obvious. And to be very very petty, I dislike their robes.
All and all I found that Elpis and the researchers there were a direct parallel to Azys Lla with a lesser degree but still present amount of the callousness out of privilege, boredom, and hedonism of the Late Allagans shown in Amon's flashback. Slightly less amoral but not as admirable as the writers wanted me to feel about them. I found the Ancient society inhuman and inhumane. And yes, I am judging them by my mortal standards, both in-game and out.
Their society wasn't the civilization that I disliked the most in XIV, I think (that title might go to the Garlean Empire, Allag, or Eulmore under Vauthry) but what was giving me bad vibes and a sense of unease were similar.
In short, my take away from the time in Elpis was that I wanted to Sunder them and would have done so if Venat didn't.