A denomination recognised as an area of excellence in 1716, described as "arguably the most famous of the Chianti sub-zones" by a Master of Wine in 2018, and almost absent from the international consumer radar. The reason is in the name.
The denomination with the most extraordinary historical record in Italian wine is almost absent from the international radar. That's not an accident, it's the result of seventy years of administrative simplification.
Any system that manages complex value works when it codifies enough to make context legible, and little enough to avoid destroying what makes that context irreplaceable. Barolo has understood this for two hundred years.