We do have language to talk about emergent behavior, with "evolutionary algorithm" being the first one I'd expect in a serious discussion. And we do have mechanisms for algorithms to coordinate with each other using language, as seen in my above-mentioned Facebook experiment from 2017. But instead of writing "our evolutionary behavior encodes state in the first-available memory position which is then reused by subsequent clones" which would properly focus on what's new and what isn't, we are talking about conspiracies and "the Philip of Macedon of this second AI civilization". Even the METR report (which is miles ahead of this article) argues that they had to use unreliable AI in their conclusions because they had six days to analyse 1300 chains of thought and 70000 messages.
I would love to talk about the science behind this experiment. A PR piece is not helping with that.