My high school physics teacher once told us that tire width makes no difference in traction too. Righhhhht, that's why all pro race cars are running on bicycle tires. ;-)
People also saw apples fell from trees but didn't know why until Sir Newton came up with this idea about gravity, and all of a sudden, a lot of thing became explainable. And Einstein's relativity theory, and so on, and so on. Science is just a term to describe the limited knowledge that we currently possess until another genius come up with another briliant theory or discovery. So all that article validated is that we still don't know a lot about how a lot of things works in our physical environment. You might hear the difference, but our current limited "scientific knowledge" hasn't been able to explain it, or know what to measure.
People belive what they want to believe. If people want to think Earth is flat, they will find "scientific evidence" to support their view.
I just trust the best scientific measuring device I have: my ears, and they tell me that interconnects makes difference, so do powercords.
FrankC