Sometimes your greatest strength is your greatest weakness. It's all 100% hindsight though. People would be screaming with delight if JJ nails that. There would be 100s of photoshopped Joe pictures. Instead of running a more involved play they went to their comfort place, which has been working for them. If Hayward holds the ball and gets a shot for himself, people would be screaming about not getting Johnson the ball. Hell I've heard people on this board say a contested JJ shot in the clutch is better than an open 3 from anyone on our team.
In hindsight the best strategic play would have been the quick 2 from Hayward, or someone going to the basket. If they provide help, then you kick it out for a 3. Play the foul game for at least 1 more possession and see if you can get lucky.