It's hard to give an unbiased opinion... but I will say that I have to side with Eddie:
#1- Eddie took a paycut to make the fight happen, to save himself from potentially losing more money, he asks that the fight goto 165lbs... FAIR/Reasonable.
#2-If Royler didn't care what Eddie was wearing, then he wouldn't have had a lawyer re-discuss the contract.
imo... this is just gamesmanship at its finest and the Gracies (though a bad ass family), have a long history of pulling this.