Another red flag is that the article used repetitive phrases in an AI-like way:
"...it illustrates exactly the kind of unsupervised output that makes open source maintainers wary."
followed later on by
"[It] illustrates exactly the kind of unsupervised behavior that makes open source maintainers wary of AI contributions in the first place."
I used to be skeptical that AI generated text could be reliably detected, but after a couple years of reading it, there are cracks starting to form in that skepticism.