So all these other high end manufacturers have just been guessing up to know?
I suspect in more than a few cases, yes. How many of these wire and cable guys actually had a degreed electrical/RF engineering background when they first had “an idea”? Some, but I’m guessing not all by a long shot. If it’s any comparison worth noting, how many other companies have the engineering basis for their designs fully documented for all to review, and (for those who understand the papers) open to challenge and comment? OTOH, how many companies describe their products by relying on catch phrases, touting the purity of materials or some magical treatment, etc etc?
Doesn’t mean some of these cables aren’t potentially good, even great, but as with everything in audio it seems there’s more than one way to get to something good. Some ways are done by people who have the engineering background to know why they need to do something a certain way - and have the ability to explain it, some are done by dedicated DIYers who’ve figured things out over years of trial and error who have to presume the basis for why something they just did sounds the way it does, some by people somewhere in between.