That's the way life works. We observe things in our world and think we see a pattern and then draw conclusions based on those patterns, even though there may be unknown, true causes that are completely hidden from our detection that are the complete cause of what we observe.
Back to the 5 cable designers and their roundtable discussion points out that here we have 5 guys truly trying to solve the "cable mystery", all with completely different approaches. And I'm sure they all think they (individually) are all on the correct path, and their theories are sound (pun intended).
But the fact is, they may all have come to incorrect conclusions. We understand the basics, but at the sub-atomic level, in many cases, don't really have a handle on what is going on, nor how those behaviors affect matter/physics at courser levels.
While we all think we can hear a change, swapping out cables, there are so many factors involved from the equipment itself to weather conditions to audio memory, that many conclusions made on day one are reversed on day 2. I've done that myself.
So, the mysteries go on.......