“What’s there not to love about the town of Stars Hollow?” the song asks, in what is both a sincere question and, perhaps, a swipe at the place’s provincialism. While watching Gilmore Girls: A Year in the Life, you may find yourself asking the same thing, and you may conclude that there is still plenty to love. But you also may find yourself looking more critically at this Main Street, U.S.A., and more easily spotting some of the flaws that co-exist alongside its charms.