As fun as Game 1 was for the Timberwolves, and it WAS a lot of fun, the NBA Playoffs are not a single elimination tournament. They are more of a marathon than a sprint, and the best-of-seven series allows teams to have a bad night and still right the ship. It is also commonly referred to as a way to make sure that, health permitting, the true best team in each series advances.
This setup also allows teams and coaches to take a punch, regroup, and adjust. The Minnesota Timberwolves undoubtedly threw the first punch with their Game 1 victory in Memphis over the second-seeded Grizzlies, but now the real chess match begins.