I’m not so sure it’s that easy to detect AI content generated with careful prompts to rid it of the obvious markers and patterns - and especially not if it’s then human proof read and revised.
It’s more likely the entire site gets flagged with “bot creation” via manual inspection.
Search engines are terrible at catching it.
Here’s a case in point:
OpenAI Releases GPT-5.6 Soul, Terra and Luna Models - Geeky Gadgets.
This came up within the top 5 search results, but the mispelling of Sol gives it away as slop.
It’s not even been reviewed by the owners of that site. No human would make that error.