I'm very new here, and I don't love knives in any real sense so take what I say with a grain of salt.
I have a couple hobbies but the biggest is bicycles preferably boutique bicycles. In many ways bicycles are like knives there are only so many ways you can design them and still have a useful bike. Geometry and tube shape, tub materials and the like are for the most part standardized across the industry so builders differentiate by craftsmanship. I don't think I nor Richard Sachs would have an issue with Dave Kirk building an homage bike using his lugs and geometry even if he called a Sachs by Kirk Frame Works. When you move down market away from bespoke and get into mass produced bikes you find copies of things like the Pinarello Dogma i.e. the frame is shaped the same way but it's no sold as a Pinarello. These are generally made in the same factory as the real deal but sold cheap on ebay and the like. I have a bit of an issue with these because of how they're being sold not so much because they have the same design but because there tends not to be a reference to the original, but whats telling to me is the companies don't have a public grievance with the practice.
I guess what I'm getting at is if the originators of the design in this case a knife don't have issues with copies and they have the most to lose why should I?
Fun example, I own a custom Rick Hunter myself. He's not the first to use the wishbone seatstays, but it's now recognized as one of "his" designs, largely due to his fillet brazing work. The tubes were often sold only by a few ruputable steel makers, Columbus, Reynolds, etc. Then again, I've worked with some taiwanese manufacturers that make pretty much all mainstream brands, very similar to KAI. Not to say the quality isn't as good as a handbuilt custom frame, but it certainly is a lot harder for people to wait for a Sachs, Hunter or anyone with a few years wait.