It’s kind of shocking the OP does not consider this, the most likely scenario. Human uses AI to make a PR. PR is rejected. Human feels insecure - this tool that they thought made them as good as any developer does not. They lash out and instruct an AI to build a narrative and draft a blog post.

I have seen someone I know in person get very insecure if anyone ever doubts the quality of their work because they use so much AI and do not put in the necessary work to revise its outputs. I could see a lesser version of them going through with this blog post scheme.