If it still called encumbrance well there is your problem. Encumbrance =/= weight and generally speaking it would be more difficult and encumber you more to bring around a sword than armour as a sword is relatively unwieldy when it is at your hip compared to armour which you can wear. Think of armour as your clothes and the sword as a heavy school back and which one restricts your movement more?
Also above all else and I am getting quite sick of these topics relating to encumbrance in Bethesda games as the way they do it balances the game stop thinking about it like real life or in your own logic.
Also above all else and I am getting quite sick of these topics relating to encumbrance in Bethesda games as the way they do it balances the game stop thinking about it like real life or in your own logic.