Well, after watching the video, I think Destin designed the product in the most expensive way possible for this application, using the progressive die sheet metal handle, multiple injection molded parts, fastener, and chainmail.

If I were to design it to be manufactured in the states, I would probably go for a simple wooden handle with off the shelf wire mesh instead of chainmail, and the fastening would just be mechanical fit between wrapped wire and handle with no additional fastener, which should massively improve price and manufacturability.