It;s not a knife that I'd personally own, but from a design point it does have some merit.
It depends. Take Chroma knives for example.
I held that knife in my hand and concluded that I don't want it even if I got it for free. In my opinion, that handle makes the knife unusable, but from a point of view of the designer, it's a complete product.
At best, I would call it a concept that should have never been turned into a product. I also doubt that whoever designed it cooks, as no serious cook would select that design.
I give a thumb up for Japanese. They keep things simple.