Just to give some perspective
Scholars have exercised themselves mightily over Shakespeare willing his second best bed to his wife. What does it all mean? What huge significance might there be? Well, it could be that she liked that bed. Likewise, the gravestones for Tolkien and his wife read “Beren” and “Luthien” respectively. Imagine they’d died 2000 years ago and been found today. Imagine all the archaeological speculation about the “historical Beren and Luthien” who were the “sources” of Tolkien’s myth. Bottom line: Archaeology is an incredibly inexact science. There could a million explanations for the ossuary inscription that have nothing whatever to do with the James of the New Testament. Don’t make *too* much out of this find. It is suggestive. That’s all.