It's also a pretty clear indication of AI undeniably passing the turing test in case that was in debate still.

No one can really tell if what's AI generated or not anymore. We're all going by vibes and undoubtedly getting it wrong.

The author literally admits to using AI in the preceding comments...

It's not written "well", it lacks that human touch, especially when writing about such a sensible subject, such as getting fired. It's too cold, actually too well written from a syntactic pov, which makes it inauthentic hence most probably AI.