As I explained in Spoofulated or Artisanal?, the conversion of grapes into that stuff in your glass is obviously a major technological reshaping every time. Unlike the free, open ‘70’s and ‘80’s, today’s winemakers are lying low and keeping mum while paparazzi fire live ammo over their heads.
In Dan Berger's latest Vintage Experiences he relates a conversation with a fellow judge, and East Coast Burgundy junkie, who indicated concern about California Pinot Noir and the current fad to blend these with 24% Syrah to obtain more color at the expense of covering up nuance. I was with him all the way until he stepped off the cliff of absolutism: "Color in Pinot Noir ought to be pale, not black. If you see a black Pinot, something is wrong."