Yeah they didn’t use x-rays, says something about the reporter or headline writer.
Further References:
1- Scholars Expound on Mount Ebal Curse Tablet with Oldest Hebrew Text
https://www.jewishpress.com/news/archaeology-news/scholars-expound-on-mount-ebal-curse-tablet-with-oldest-hebrew-text/2023/05/12/
2- Archaeologist Claims to Find Oldest Hebrew Text in Israel
https://www.touchpointisrael.com/2022/04/05/archaeologist-claims-to-find-oldest-hebrew-text-in/
3- Why does a 3,300 year-old piece of rock from Mount Ebal matter?
https://blogs.timesofisrael.com/why-does-a-3300-year-old-piece-of-rock-from-mount-ebal-matter/