I have no faith in anything materializing from the appeal. To me, an official should never be the one who decides about the length of a suspension. An official can often be emotional invested after an incident and therefore should not be judge, jury and executioner.
Although I'm not a hockey referee, I am one in a couple of other sports and I have never been asked to be part of the suspension processes. If I red card a player in a soccer match for example, I have to write an report afterwards describing the incident and stating some basic factor the might have a implication in what kind of suspension is handed out. If it's a really really serious incident I might be asked for an additional statement, but I will never be asked about how long someone should be suspended or even if someone should be suspended. Most of the times the referee will not even be notified of how long a particular player is suspended. At least that is the process used here in Norway.