[Dartgod]

I've been looking at the video frame by frame, and it's a little difficult to follow the ball when it gets near the foul pole. But these two screenshots pretty much show that it was foul. The ball is circled in red in both shots.

In the first one, you can see that there is not a white blur in front of that black bar sticking out, which is in foul territory according to the announcers.

In the second one, the ball is clearly in front of that bar. Again, foul according to the announcers.