Although the market didn't like Dutch Bros' second-quarter earnings, four critical reasons for optimism make the company a compelling long-term buy.Upstart coffee and hand-crafted beverages chain Dutch Bros (BROS 0.46%) released its earnings report on Aug. 7. The company grew sales and adjusted earnings per share (EPS) by 30% and 46%, respectively, topping analysts' expectations. Despite these impressive results, the market sent Dutch Bros' stock down roughly 21% as the company admitted that its new store o ...