It has been fashionable among physicists in the past years to make a publish such experiments. Though, a violinist distinguishes a good from a bad instrument. The difference is much bigger than between wind instruments of same model. But finding the difference can take more than 5 minutes, it's better perceptible when playing than when hearing, and it needs people with decent ears.
By taking 20 random listeners, and letting someone play a 1 minute melody instead of provoking the violin's weaknesses, bad researchers produced bad research.
Excellent violins were made more recently too. Vilde Frang, Hilary Hahn play on Vuillaume.
It just stands that nearly all the surviving old Italian violins are excellent (which include Guarneri and Guadagnini! Often better than Strad) while more recent violins are unequal. The reasons are unknown: probably not the varnish, not for having been played - but possibly because the wood is old hence lighter.
Old Italian violins are
louder, more brilliant, they react faster - everything a soloist wants. But Gypsies or chamber musicians seek a completely different sound, not that strident, and while all violins in West Europe are copies from Amati, Stradivarius, Guarneri or rarely Guadagnini, in Hungary and Romania other lines exist with a nicer sound.
Old Italian violins were not renown until the 19th? No wonder, since all violins were deeply modified in the Romantic era. They got a more curved bridge to accept more bow pressure, so the bridge became higher, which needed to replace the bass bar with a taller one. That's a huge change!
We know extremely little about the acoustics of music instruments and about sound perception. Or even, many ideas common among physicists are just wrong, like sound resulting from a harmonic spectrum, and mislead research in sterile directions.
Technology doesn't help so much. For instance man-made materials are inferior to spruce for simple physical reasons.
This same reason suggests Kiri (Pawlaunia tomentosa) may outperform spruce. Worth a try?