Foul or incidental contact?

[Coach Bill]

I have an example from my game a couple weeks ago. My guy goes to set a screen for the ballhandler, the ball handler gives a fake, but drives away from the screen. The defender goes for the fake, makes contact with my guy setting a screen. He gets called for an illegal screen. I agree that my guy was not completely set when contact was made, so if he used the screen, I would have agreed with the call. The way it went down, I thought it was incidental contact. Your thoughts?