Saw this today and thought it was interesting. If I understand it right, IFF was called but the runner interfered with the 1B before the ball was determined to be fair or foul. I was not sure about this part but the closest runner home is called out because of the interference. After the interference, the ball was fair so the batter runner was called out. If you watch the video, bases are loaded with one out since it is hard to tell from the video.