cmp! Please
Saw poop get out of hairy situations today chambering with his fist. Well he eventually got killed on the second swing, but he shouldn't.
It just wasn't right.
I thought it would be a cool mechanic to add. It's not that unrealistic that someone would close in and somehow wrench the sword from a combatant, or knock him down.
Let's say you chamber a side swing and the opponent looses his weapon to the ground, if you fist-chamber an overhead or thrust you "pull" him/her to the ground similar to knockdown *maybe add a bit of the cav slide animation? Direct weapon stealing would be a bit too gimmicky in my opinion, but one could always pick up the opponents wep from the ground.
It would make it slightly risky to attack someone unarmed, or one could switch to unarmed combat with a real benefit.
Isn't this what you are looking for to make melee deeper? People falling or loosing their weapons on the battlefield probably happened all the time, so there is also a realism argument here.