People are complaining that everyone is wearing legendary cloaks so they should be able to mog all legendaries but I think that's a false equivalency. Cloaks were designed with the knowledge that a great number of people were going to have them whereas most of the other legendaries were designed in a way that they were meant to be rare at the time they were current (ie: in vanilla it was a big deal if someone had Thunderfury, BC was a big deal if people had glaives). But now it's generally easier to get the old legendaries expecially considering all the time that has past since. I mean heck I have a wair glaives on my shaman and I almost have sulfuras.
Now if everyone were to run around with their newly aquired legendary mogs it would diminish some of the value of that particular legendary.
It's exactly the same as how Blizz removed the mounts and titles from naxx after 3.1 or the way they're doing the ahead of the curve stuff now. They want the legendaries to remain a "badge of accomplishment" from that particular time period
I know this sounds haughty and sounds like I have special snowflake syndrome (I honestly don't but I see where they're coming from)
All I'm really trying to say is that just cause everybody has orange cloaks doesn't mean that now everybody should be able to mog legendaries.