Etna vineyards blanketed in snow

As some of us in the UK get affected by snow, what does it mean for Europes vineyards? Sicily saw thick snow this week in vineyards in Etna. But is this bad news? Gambino Winery in Etna have said the snow is good for the vine and helps wine quality. They grow Nerello Mascalese, Nerello Cappuccio and Carriante. The drop in temperature and dry air even for a few days allows vines to purify themselves from mold and bacteria accumulated during the wet season.