The many setbacks of 2020 notwithstanding, there were numerous bright spots for the wine industry over the course of the year. As regular readers of this column know, I oversee four major international wine competitions. The insights I gain as I digest the competition results—from new trends and developments to the confirmation of long-held truths—give me a unique window into the year-to-year evolution of the wine world. I’ve assembled highlights from the four competitions that provide a peek into the not-too-distant past, a 2020 that was better than you might have imagined given the circumstances of COVID-19 lockdowns and rampant disruption of our dining and consumption habits. We kicked off the year with the Winemaker Challenge International Wine Competition in January. The domestic wine of the year was the Ledson 2016 Cabernet Sauvignon Estate Reserve, Alexander Valley ($120). Winemaker Steve Ledson emerged from the construction business a couple of decades …