My dislike of Roglic is nearing the dislike I had for peak Froome. Yeah its a sport, no gifts or mercy is to be expected, I get it. But there is something called good taste. It seems clear to me that he could have caught Mäder whenever he liked, but just toyed with everyone else. In two weeks he will have forgotten all about this minor victory, whereas Mäder would most likely treasure it for the rest of his life.
Emotions aside: While there is an argument that last year's Tour supposedly taught Roglic a lesson, I fail to see that lesson applied. He is riding the exact same way that lost him the Tour last year - temporiding by super-domestiques (which unlike SKY doesn't shed the peloton, but merely discourage attacking) and attacking 1½ km from the finish to gain 10-20 seconds. Lucky for him, he has no equal at this race. But against more serious competition he is only a midrange (not even long-range is necessary) attack by another S-tier rider from losing another Tour.