For me, this works better than increasing the amount of hand dishes I have to do.
Also, I don’t know what all the food safety and dishwasher vendors are telling their customers, but that nice residual chlorine has a tasty and odor that is not appetizing at all. But you can also legally disinfect your dishes and such with sufficiently hot water, and you can buy a commercial dishwasher that does that instead of using chlorine.
In a home context, what’s wrong with dish soap and a sponge or brush? In a commercial kitchen that really wants to be compliant could use dish soap followed by a (very) hot rinse. The average household instant hot water tap is plenty hot for this, too, although demonstrably hitting those HACCP targets might be tricky.
I think my other points matter more. I think people who are invested in the experience as you suggest care about more than just the edge and finish, they care about the weight and balance and feel as well. I think this knife is probably worse on those qualities.
I don't mean to say this knife sucks or that this guy is dumb. It's a cool knife, and he's clearly not dumb. I just think this is more a passion project curiosity kind of thing than a useful product addressing a large market need. Maybe a future mass market version (cheaper steel, stamped, more contoured handle) would change my mind.
Indeed, and they won't buy the knife at this price anyway. My point is that not being dishwasher-safe does not matter for ~everyone. If they care, they won't do it; if they don't, they won't buy it.