Possibly because AI was trained on humans.

The "furthermore" and the "Regardless, the negative impacts of graffiti should not be overlooked" do feel a bit AI-esq these days, but it was only yesterday that I myself felt like I was writing like an LLM by responding to a "you misunderstood, I meant …" with an "ah, now I understand": https://news.ycombinator.com/item?id=40380692

Because the only other group of people who use transitions so often are third graders making sentences from templates.

Observations affect the observer?