To take it a step further, I wonder if the Wando defenders could have hustled back into the box and backed up their keeper if they hadn't stopped on the offside whistle. I assume there was a whistle (I didn't hear it in the stands) because a lot of kids stopped and it appeared even Dunbaker hesitated.
SoccerAnswer, I disagree on the Sieverding header. From my view, he was pretty well-marked but simply outjumped and overpowered his defender.