So from what I can gather, after the real time moment, the referees gathered to discuss (without seeing review), they decided to called it a goal. Now on the review, they need conclusive evidence that the call on the ice was wrong ... namely, they needed evidence that it was NOT a goal and from those pictures and freeze frame ... pretty obvious that it was a goal even though you cannot see it 100% pass the line. That's the sequence of event.
Had they called it a no goal (after referee meeting), then they could have concluded that there isn't 100% evidence that the puck went over the line and maybe Oilers would have tied the series?
Thank you refs. Oilers please just leave after 1 round and rest, you've played a lot of hockey in the last 3 yrs and it's so obvious that you don't have the players, pieces, cast to win the SC this year. Team is actually worst than last year!