You can’t see the damage in the photo, but there is a LOT of it. I saw a photo imaged to bring out the damage, and it will take countless hours to repair. You could go read about it, but you don’t seem to appreciate preservation of a national treasure of archeology or ancient art itself very much.
Well, they walked inside the restricted area. I saw a statement that they had trampled some line, but I can't see what that might have been. Certainly, it was a stupid act. WHAT WERE THEY THINKING?