Not the parent poster, but I'm curious why you think this? the comment seems reasonable and makes sense, your LLM detector might be more finely tuned then mine...
Some people have AI fatigue, I have "this is AI" when nothing says it is fatigue, that and "this is slop!" without looking at it and judging it by the output fatigue.
The sentence structures they use are always the same. Plus, the use of "real" here is "real" awkward and LLMs use it like that all the time.