A human artist rendering would not have changed how anyone consumes this article. In fact it may even be less realistic given how artists are not experts in every field and more often than not take wide liberties (see dinosaurs)

I think they're commenting on "Midjounrey"

If you care, you can hire an artist and a subject matter expert to collaborate and produce accurate (to current scientific knowledge) renderings.

Or even an artist who has prior experience creating accurate renderings from archeological data.

If you care.