The wiki article has a section on 'Energy, matter, and information equivalence', the first Quanta article is almost entirely about the 'deep connection between quantum error correction and the nature of space, time and gravity' and about bringing the same information centric approach from AdS to our spacetime. The second Quanta article is explicitly about about bringing a holographic approach to our non AdS spacetime and cites an Ed Witten paper as the cornerstone of that approach (which one perhaps overly excited MIT physicist describes as 'revolutionary').

AdS is 'old' but the articles aren't suggesting it is new, and our spacetime is not AdS and the articles don't suggest otherwise. The point is that there's a search for a way to fit the holographic approach to our spacetime that's inspired by how AdS helps make sense of black holes. Quanta writing being directed at a lay audience ought to be a good thing, not a bad thing and they do link to papers if that's your jam.

Whether or not your LLM of choice produces indecipherable walls of text, and whether it ties those to sufficiently satisfying citations, I think is just a matter of how you go about the prompting.