The problem isn't the three pointers, it's who is taking them and when.
Smart is taking 7.3 3PTA per game in this series and hitting them at a miserable 31%.
He, Brown and Walker are all guilty of taking three pointers very early in the clock, though Smart's seem more egregious as he seems okay with taking them from 27-30 feet out.
In no world should Smart be taking as many threes as Walker, Tatum and Brown. And the team needs to explore their offense better than just jacking up threes in the first 8 seconds of the shot clock.
Heck, I would be okay with Wanamaker taking more threes, so long as Smart is taking 3-4 less a game.