In all fairness to the original poster, my impression was that he was saying that neither referee saw the infraction, and so there was no call made. It was only because of the coach's challenge, and the subsequent video review, the infraction became apparent, resulting in the disallowed goal. For the doubters, at the 1:30 point of the highlight video, there is a camera angle shown that clearly illustrates contact being made with the goalie.
Ontario Hockey League – Official Site of the Ontario Hockey League
Interesting, in that we usually don' t ever get to see all the camera angles that the video review crew base their judgement on. However, it does raise the question as to why a penalty for goaltender interference was not assessed, since the infraction was deemed to have occurred ???