mojo, where did you get the idea that the goal of power cable is to eliminate noise? The primary goal is to deliver power with as little restriction as possible, and then the noise part comes after that.
As for shielding, please note that in the cut-away photos of both cable clearly shows copper foil shielding for maximum shield coverage.
And where did you get the idea that it is useless unless it is paired with a mains conditioner? It works fine as is, and it is mutually beneficial if you pair them up, but it is definitely not required for the cable to work its magic.
As for Cryo processing, it is being used in MANY other applications other than conductors in cables, it is also used in industrial applications like casting dies, high speed cutting tools (yes, and people used that on their pocket knife too) and more. It is a proven process to improve many aspects of performance of metal (possibly other materials, but that I'm not sure), I suggest a search on Google and Wikipedia for the science behind the process.
Here's one link that I found a few minutes ago:
Cryogenics - Wikipedia, the free encyclopedia