Restoration is used in real time with an animation so why not potions ?. I have recently stopped using potions during combat as its just boring grinding. Pause chug potions un pause swing sword pause chug potions swing sword repeat and win. It would be so much better if after selecting your potion your character takes out a potion and dinks it or apples poison to a weapon in real time. That's how restoration magic works its not instant and your vulnerable to enemy's while using it.