What's your huge qol transmog request

As an on again off again player since 2007 there are very few things that bug me about the game, mainly because I know it's impossible to keep everyone happy. The one hill I will die on however bothers me to this day. Warband xmog was a awesome addition to the game, and I'm not even upset over the class specific tier restrictions and stuff.
My issue is .. daggers.

One of my 2 original mains circa the old days is a rogue, and I have always enjoyed the dagger centric builds (except for the good old combat days). Why is it still impossible to transmog a dagger to any other 1 hand weapon? I understand that some moves (backstab ect) might seem goofy with a mace or fist, but I honestly can't see a reason they cannot allow it. Does anyone know if it has ever been definitively shot down saying it will never be implemented? I love the visual freedom available on other classes, especially the options on say my fury warrior. Would this actually make any other classes annoyed? Or is there some real hard written reason this can't be changed?