Wow - it sure is different and if that is one I'm certainly glad they've evolved. It really looks very much like it might be. But I think perhaps the cook using it would have to have been mighty careful.
I use the flat side of mine for schnitzel and that's about it.
I would use it for tenderizing meats (if we ate meats). It would also be handy in the kitchen if someone broke into your house, you have a weapon. (no joke)
*newspaper headlines: woman protects family against burgler with meat tenderizer-go you!*