I get it. Personally, I felt really empty while doing Living Memory, because it just felt weird going on a sightseeing tour knowing that we would shut all these terminals down, and the zone's concept also felt like a bad copy of Ultima Thule.
But I get what he is saying. Shadowbringers did a much better job at exploring the moral ambiguity that came with certain topics, while Dawntrail pretended like there is no moral ambiguity to what we were doing. Instead of doing some "sightseeing", I do wish they would have dived into the justness of it all more, and not treated all of the endless as if they were a hive mind sharing all the moral standards and wishes.
But this was also a problem with Tural as a whole. We spent the first few levels of the story learning that different people in Tural have different goals and wishes, yet when Wuk Lamat became Dawnservant, they all cheered to her preaching about smiles and happiness without ever having learned what this actually means. It's just not realistic, which made it seem immature.
I'm just shocked, if anything. Previously, the writers were never afraid to explore moral topics to keep the narrative interesting.