your analogy breaks down rather quickly, as several people have noted already. Blind tasting is central to wine judging. Has been always will be. Professional sommeliers, are tested and accredited using this method. Winemaking is totally supported by science and in turn has invested heavily in research. you can get a degree in oenology from prestigious, land-grant universities in the US. The wine industry knows very precisely what makes a good wine and how to measure it. The trick is in producing it, and that in a large part is due to weather and its variability. of course, like hi-fi, there is the marketing and the wordsmithing, and the romance, which is essential to the enterprise. Without the Romance of wine it becomes just another form of alcohol, which is a known carcinogen, muscle toxin , and intoxicant. We know these things too also courtesy of science. so, I think you will agree there are large and very significant differences between the very large wine industry, and the rather small industry around hi-fi.
Why Are We Breaking Our Brains?