When it comes to NPC gear, have we ever gotten it as a quest reward in game? I may be missing one but I think they all go on Mogstation. (I'm not advocating for Mogstation, just not remembering them appearing in game.)

But to your question, it would be nice if they'd give it to us. I'd take it a step further and request a full suite of weapons for all jobs done in the same style as the sword.