I think daggers in this game need a buff. Perhaps duel wielding could make them more of a viable option (they are pretty useless atm)
But single handed weapons such as swords, axes and maces I don’t think should be duel wielding weapons. Daggers and perhaps hatchets is where I’d draw the line.
…Saying that, those crazy Orc Fellas look like the kind of dudes that would run into a battle with a weapon in both hands ;)