A requirement not expected from their marketing department.
" Fashioned from AUS 8A stainless steel and reflecting state of the art heat treatment they are honed to a razor edge and exhibit incredible toughness for such a small knife, due in part to their full tang construction. Tough, rough, and ready for anything"
The worlds strongest, sharpest knives (except this one).
I've batoned knives nearly half this thickness (1.5 mm vs. 2.5 mm) with MUCH harder steel, and impact much greater than the user describes with no problem. Some improvement of technique is probably warranted, but light batoning like the user describes (tippy tap type impacts relative to the 4 lb hammer I was using) should not have caused such a failure. If you need an easy to carry knife that cuts good and can withstand occasional light batoning, just get an Opinel.