Much ado about nothing. I was a participant in many double blind audio component and cable comparisons back in the day, always came away more confused than sure I had really preferred one component or cable over another. Listening to unfamiliar systems in what can be stressful environments to short snippets of tracks is not the way I listen to music.
In the particular case of this video, I'd never chose the tracks they chose, all were highly processed recordings, doesn't tell you a thing about timbre.
Long term listening in your own system is the only true measure of equipment, this stuff for the ASR crowd.