"How are cables that we don't like explained without a double blind test".
Just possibly, some folks have better critical listening skills than others. And with sonic differences for wires, which are often subtle, and reveal themselves over long(er) listening sessions, perhaps the differences will manifest themselves only if you have good critical listening skills. Some folks can't hear any differences, and think they don't exist.
Personally I just listen to the cables after they have been up and running for 24 hours before I attempt to analyze their performance, always using equipment and music with which I'm intimately familiar.
BTW I think the value of A/B testing is flawed, not so much in the theory but in the execution, and of little real value. FWIW.