Let's not go crazy thinking Smart is some great shooter. Except for the 2018-19 season his shooting percentages have been terrible. Even this year his FG% was just 37.5% which is truly awful. His 3PT% was just 34.7%, more than a point below league average, and his TS% a paltry 51.8%.
Yeah, he can put up games like the 5 3's in a quarter or the game he hit 11 threes, but then he'll go a couple weeks where he can't hit the water if he was shooting from a boat.
Don't get me wrong, I love Marcus. His defense is some of the best in the league. His passing, when he isn't trying to get way too cute with behind the back passes and such, is great. He has a clutch gene in him and is a plus rebounder for his size. Overall, a player you want on your team. But his shooting is still pretty terrible overall with some, at times, really bad decision making about when to shoot.