League-wide, shooters are hitting 35.8% of their three pointers. Since a 3-pointer is worth 1.5 times a 2-pointer, the EFG% of a three point shot is 53.7%. Compare this to the 48.1% FG% for 2-pointers. League-wide, each 3-pointer has a 12% edge over a two pointer in the likelihood of scoring a point.
For the Blazers, the EFG% edge of a 3-pointer is even greater. The Blazers are hitting 40.5% of their 3s (EFG% of 60.8%), and 48.2% of their 2s. For the Blazers, each 3 point attempt is likely to yield 50% more points than a 2 point attempt. For the Blazers, the EFG% edge for a 3-pointer is FOUR times the league average EFG% edge.
This is why shooting the 3 is at the heart of Stott's offense, and defending the 3 is at the heart of his defense.
You want the Blazers to take all those threes.