FVV literally has two hands on Steph before Draymond even moves on that screen, so if there should've been a foul called there, it should've been on FVV. In fact, you could even argue FVV is hand-checking Steph before Dray even comes over. And whatever 'moving screens' that GS might set during the game, they pale in comparison to the amount of times that Steph is pulled and pushed without the ball.
I have no issue whatsoever with moving screens being called, but if we're doing that then whenever someone impedes Steph off the ball, the same has to be called.
Steph would have an open shot every other possession if teams were called for holding him without the ball.
That's why every series that GS plays is dictated by how physical teams can be with him.