It would be very interesting to see the Supervisor of Officials assessment of all the refs after each game and periodically. Are there any sites that "assess and rate the refs"?
Kind of.
Today’s NHL Referees and Linespersons – 1/27/24
Today is the busiest hockey day of the month, with 14 games on tap and 56 NHL officials taking the ice. Today’s NHL Referees and Linespersons for January 27:
scoutingtherefs.com