A letter from the Finishers Club is pointless.  Time to do what real pro sports do - strike.  If 50 mushers withdraw from the race, that would get the ITC's attention.  But Iditarod mushers likely don't have the backbone to strike.  After all, they pay $4000 to enter a race where they agree to a gag rule.  Iditarod mushers are programmed to not complain loudly.  Sheep to their ITC lords.