I think just like all the hifi nonsense like line conditioners, speaker wire elevators, and green marker on CD rims can't stand up to real double blind tests, it seems musical instruments suffer from the same biases.
Double-Blind Violin Test: Can You Pick The Strad? : Deceptive Cadence : NPR
I picked the right one but have to say it sounded close but I remember hearing recordings of Stradivarii violin solos compared to other ones and distinctly remember that they have more muted lows so to me I could tell. But only just so.