Yup. In this particular case, it’s absolutely true. The specs are ever better. Also, I have proof. The $1000 cable was unable to reproduce a specific note that this cable is capable of doing.
So you have proof? Evidence please. A defective $1000 cable might have audible issues with frequency reproduction, that’s about it.
A $1000 cable that cannot reproduce certain frequencies within the 20-20k range, has, shall we say, "issues". Or maybe you have a long run of analog cable-- that can easily pick-up interference. Deal with that and the cable suddenly works as expected.
You make the claim that better specifications mean the gear sounds better? Most specifications are meaningless, while some matter a great deal. The last publication that took the steadfast opinion that better specs equals better sound was "Stereo Review"-- decades ago. It was pretty much non-sense then, and it is nonsense now.
Beyond a certain level of spec, things like your ROOM, electrical interference, your unique combination of gear, and the overall quality of the power in your home-- all of that plays a far greater role in how a system/component(s) sounds than any given spec. Unless of course, something is broken.
Fantasy football, is, after all, still a fantasy, despite all of the numbers.