The Spurs will have to shoot and make more threes eventually. They are now 23rd in the league in 3PTr, sitting at .355, last year they finished #8 at .441. Granted, not all good teams shoot a lot 3s and not teams that shoot a lot 3s are good (Nets was #3 last year, Bulls 5, Jazz 7, we were 8, Suns, Wizards, Hornets, and 76ers were all in the top half. While Nuggets were dead last, Knicks at 28, and OKC was on #16), but for a team that needs the paint to operate well, having a 3pt game as a release valve or a threat will just open up everything.
Note, last year, the Nuggets were #4 in ORtg, OKC 3rd, Knicks 5, despite their relatively low 3PTr, so here's looking to MATFO to create a decent offensive system.