At the beginning of Breaking Bad it still seemed like Walter was actually doing it only to avoid leaving his family with the debt of his treatment and that he would agonize over every killing he may have to do. He seriously considered letting Crazy 8 go until he pieced together the plate. The show looked like a very different show in the first two seasons than the final three. At least in Breaking Bad though the premise had been fully established in the first episode. Better Call Saul seems to be trying to establish things about Saul's that Breaking Bad fans already know and hasn't established the main dilemma yet. You could say, they're doing it so fresh viewers can understand the character. But fresh viewers have no reason to be intrigued by the character yet, and they were clearly leaning on the viewers' recognition of Tucco to establish just how much danger Saul is in.