I think Lauri's just playing the percentages. And obviously he's doing it extremely well, since this approach has made him one of the most efficient volume scorers in the entire league. His current level is a max player, no ifs or buts.
Lauri almost never takes bad shots or forces things. Sure you'd sometimes like to see him try the types of shots that he's more or less deleted from his regular menu (midrangers, fadeaways, etc), but on the other hand... you can't argue with results.
As I've said before, extremely efficient volume scoring is the holy grail of the NBA.