from Kerry Fraser of TSN,

After referee Brad Watson placed Crosby in the penalty box, a conference was initiated by the other Officials to share their different perspective on the play. As a result of the additional and accurate information provided by his colleagues, Watson correctly withdrew the penalty call. In the end, they arrived at the right decision....

Precedent has been set to reverse a penalty call when accurate information is provided through a conference of officials regardless of the perceived status of a player. In the end, the desire and objective of the officials is get the call right.

more and if you missed it, watch how the call played out here...