If there's been one company that's borne the brunt of Amazon.com's purchase of Whole Foods, it's been Kroger (NYSE: KR). Since the deal was announced last June, Kroger shares are down 17%, including a 10% decrease the day the deal was announced. The thesis was Whole Foods' name cachet and Amazon's logistical excellence would disrupt the grocery industry.To date, however, Amazon's purchase of Whole Foods has been less paradigm-changing and more a continuation of status quo.