Originally posted by knighttemplar1960:

Why? IRL bronze was too valuable to make a such a large sword. That's why the Romans used the bronze spears and a gladius. Iron was plentiful and cheap that's why 2 handed swords started appearing in the late iron age.

The 2 handed bronze weapon in the game is the thematically appropriate bronze aetgir.

I counter your logic with; there are 20 foot Trolls wielding trees.