Heralds and Concoctions

Why can't we use heralds and concoctions? Its literally the only attack in the game that can't just because your unarmed, which seems counter intuitive because last patch they added Hollow Palm which counts as being unarmed but for the sake of skills considers as you using a staff. I dont know why they can't somehow do the same thing to concoctions, or just add "martial weapons, OR unarmed" and there's never been any distinct reasoning why they made the change in the first place.

I'd just like for GGG to say "this is why" and boom that's all I'd need even if I didnt like the answer, at least we'd know. But concoctions at this point just feel like a terrible weapon swap mechanic and in my opinion have no place in the game because they're so extremely underwhelming. Heralds would add a tiny bit of QoL to the skills but for some reason it just isn't there.