Not referring to that guy cause I don't know his work. A lot of PAK junk Damascus low grade steel floating around last few years. A few knife makers been busted using it and claiming it was high grade. Also one of the razor makers who has a blog talks about damsacus and why true damsacus is a bear because of edge needed for a straight and layers meeting at edge. He say Rowanda?? Sorry if I misspelled name, was one that perfected proper method to undo that issue so it's Rows method that has to be used or you have to have a piece of steel welded on for edge so you don't have layers intersecting at edge.
Sure someone with actual experience can tell more or if what was on blog was wrong . I though the article was an interesting read.
Mark D. Wanted large W&B's for restores