It looked like Conditt was supposed to foul him, but didn't get out there in time and didn't want to foul him in the act of shooting.
Before they inbounded the ball, I wanted them to double Nembhard and be prepared to foul before the ball got over halfcourt. I know the percentages favor playing defense in that situation, but when the other team is shooting >50% from three, you have to adjust.
I'm sure it's probably been argued to death in other threads on here already, but it was inexcusable to allow Nembhard or Bane to get anything close to a clean look. They ended up 10-14 from beyond the arc.