There were times that the Spurs relied on LMA for a lot more paint scoring after Kawhi decided to sit out the season. Plus the team had paid out a ton of dough to Pau Gasol, who was a stretch center that could pass to him in the high/lo. Not defending those teams, just simply stating that him standing at the 3 point line back then wasn't as necessary as him looking to score in the paint. However, with this current team (and last season too) with Demar featured now and Murray next to him, asking him to shoot the 3 more definitely is a requirement.