Cables need to be considered as a component not an accessory. As with any other component system synergy is the key that unlocks the door. IMO the issue with HEA(retailers/reviewers/YouTube) is the focus on 1 component NOT the complete system.
Do your ears deceive you?
If you think cables, interconnects or other wiring make a difference, yes they do. This is a long article so I won't post it here but will a link describing how blind testing results in correct guessing that is no more accurate than random chance. Enjoy.