Fury Warrior is the top tier melee spec in the game, so it’s a better used by a Warrior. For Rogues it will be used in pvp mostly anyway, which most loot councils will prio items to the biggest raid DPS upgrade, which is in the hands of a warrior.
Most of my friends in guilds said they expect to have their first and second sets of glaives to their fury warriors, in a rogue’s hands its just not as much DPS upgrade, so I see why.