It's a bit like pattern matching the Cold War fears of a nuclear exchange and nuclear winter to the flood myths or apocalyptic narratives across the ages, and hence dismissing it as "ah, seen this kind of talk before", totally ignoring that Hiroshima and Nagasaki actually happened, later tests actually happened, etc.
It's indeed a symptom of working in an environment where everything is just discourse about discourse, and prestige is given to some surprising novel packaging or merger of narratives, and all that is produced is words that argue with other words, and it's all about criticizing how one author undermines some other author too much or not enough and so on.
From that point of view, sure, nothing new under the sun.
It's all too well to complain about the boy crying wolf, but when you see the pack of wolves entering the village, it's no longer just about words.
Now, anyone is of course free to dispute the empirical arguments, but I see many very self-satisfied prestigious thinkers who think they don't have to stoop so low as to actually look at models and how people use them in reality, it can all just be dismissed based on ick factors and name calling like "slop".
Few are saying that these things are eschatological inevitabilities. They are saying that there are incentive gradients that point in a certain direction and it cannot be moved out from that groove without massive and fragile coordination, due to game theoretical reasonings, given a certain material state of the world right now out there, outside the page of the "text".