It was not called back. The on-ice call was no goal. The ref lost sight of the puck. The review needs to show conclusively the puck in the net before the ref blowing the play dead, could not get confirmation therefore no goal.
As an Oiler fan coming hear in peace, and unbiased (we are a basement dweller who essentially have no hatred for any team unlike playoff contenders lol)
My opinion is that the most important factor of it being a non goal was that hossa pushed the pad into the net.
The initial play is the wraparound by toews, and if thats all there is then rask makes the save, the puck wasn't lose there was definitely the force of the pad being pushed
78.5 Disallowed Goals – Apparent goals shall be disallowed by the Referee and the appropriate announcement made by the Public Address Announcer for the following reasons:
(ix) When a goalkeeper has been pushed into the net together with the puck after making a save.
69.6 Rebounds and Loose Pucks
In a rebound situation, or where a goalkeeper and attacking player(s) are simultaneously attempting to play a loose puck, whether inside or outside the crease, incidental contact with the goalkeeper will be permitted, and any goal that is scored as a result thereof will be allowed.
In the event that a goalkeeper has been pushed into the net together with the puck by an attacking player after making a stop, the goal will be disallowed. If applicable, appropriate penalties will be assessed.
Add the fact that the puck took its sweet time crossing the line this wasn't as controversial to a bystander