They gave a range slightly more than a hundred years. That is not the accuracy of carbon dating. Carbon dating is farely accurate in groups of 5000. It is half as accurate at 2500. By the time you get down to 200 years, you are not accurate at all.
“groups of 5000”, whatever that is. The accuracy is clearly laid out in the article, and doesn’t differ at all from what I said. Clearly you’ve got some axe to grind, but again, you don’t know what you’re talking about.