i think your picture is fractionally too early when watching on FL Show he was definitely level with DS when DS tried to make the save but it is difficult to see where he was when the shot was taken but Greer, who was our nearest player, did raise his arm. As I say not that it matters but could have had an affect on DS out of the corner of his eye.
The picture was taken fractionally too late, not early.
But he was still onside. Halford was even closer to the byline than Bennett.