Absolutely in no way is the puck entering the net after a whistle ever, EVER considered a goal. There was no goal to take away.
A surprisingly LARGE percentage of American posters here are IGNORING the fact, that in the referee's judgement --- and this is strictly her call, since the play was NOT REVIEWABLE --- she blew the Whistle After,
AFTER puck crossed the goal line. What the video review showed, or didn't show ( and yes, the review showed she was wrong about the timing, but she was also wrong to blow the whistle in first place, since puck was CLEARLY Still in play ) is
IRRELEVANT in this instance. And anyone who says otherwise, are
MISINTERPRETING ( perhaps purposely ) the rules.
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As an aside, there is no rule that says referee MUST whistle play dead the moment he/she loses sight of puck. This happens many times during a game, and most times the referee does not blow play dead, since puck is not frozen and he/she regains sight of it soon after.
Think back to the SLC winning goal P. Kane scored. It went in and out of the net, and refs didn't see it ( since play continued ). Should they have blown the whistle the moment they lost sight of puck? That's up to the Ref's Discretion .
Even if ref is well positioned, that puck moves mighty quickly, ditto the players, plus those tend to be big bodies ( esp. in Men's hockey ) on the ice. Refs routinely make judgement calls on plays they didn't have a good view of. And sometimes the officials even huddle together prior to making these calls, to ask what others saw. Happens all the time. Ref blew whistle prematurely then made a judgement call, as to the timing of said whistle, judging that puck had already crossed line. What she did was not ,
WAS NOT, in violation of the rules. DEAL WITH IT, and move on