Every 60 Warrior by now knows about Ironfoe, even level 54's can acquire it. Matter of fact, one of my guildies on another project got it while leveling, he could use it only after he leveled. The #1 DPS on this server is a Warrior, and he is the one that made this thread, the legitimacy of the suggestion is present and it requires more than a kneejerk reaction.
People claiming it is not legitimate because Ahl already has an Ironfoe therefore can't get more weapons in raid are in error. Look his character up, he is only missing 1 weapon and that is a side-grade. He has all the available BiS weapons that has dropped for the guild pretty much, as does Miley. Even for Horde with WF totem, Sulfuras, the "legendary", is weaker than Ironfoe. Ask Miley.
There was someone who posted Feenix nerfing Spell-Dmg scaling items forcing "Fire Rogue" itemization n consumables, this is a fine example. Some rogues on Feenix enjoyed being OP Fire Rogues, does not mean they have the right to want that to be the norm of the endgame.
In the end, the developers have to ask themselves what is better for the community. A level 54 player acquiring by RNG (and not raid-effort) a weapon stronger than many active endgame raiding players should not be considered a fair progression path for players for the community, especially the rarity of the item because it forces anyone who wants to compete on the meters to have to do hundreds of BRDs (more pug players than guildies surely).
Example: Legion & Legendary world drops instead of raids. This is the logic of Ironfoe.
Edit:
I'd like to point out the raiding goal of players. Some players raid just for community and progression, I would argue most raid for community, progression and more power. Cheapening the itemization experience, for weapons especially as that influences power most per slot for warriors, only makes the experience worse for the players in the long-run as it takes away the rewarding experience of attaining, or looking forward to attaining a more powerful weapon - in current or future content.