Another driver can be seen slowing and sticking to the bottom of the track to avoid Ward. It would appear that Stewart was also moving at a speed that would allow him to avoid Ward, but I don't see him make any obvious adjustments until just before the moment of impact. I don't think he intentionally hit Ward, but it also doesn't appear he tried to give him any extra room. He's a professional driver and I have a tough time believing he wasn't aware Ward was coming into the middle of the track. Also, the track appears well lit to me. There is plenty enough light to see what happens in the video, and camera lenses reduce light significantly.