You were given game 1 on a silver platter, but yes it was still a win. As far as the "must win" stuff, it's not only because it's the Cubs, it's because the Cardinals continue to nip at our heels, and we have (at least on paper) a very realistic chance to get swept if we do not win tonight. Is a sweep devastating to the Brewers? Yes, considering if that happens they are probably tied in the wild card at best, and will be down 5 to the Cubs for chance at homefield advantage. Getting a split or at worst one game out of four in this series is paramount in the big picture.