@Darashiva, the point of the weapon durability is to encourage experimentation and prevent players from always using the same weapon. If weapons wouldn't break, there would be no point in ever picking any up if you have already found a strong enough one. The korok seeds would be completely pointless, combat would get stale because people wouldn't try out new stuff, because there wouldn't be much reason to. You can just hit the enemies until they're dead without much thought put into it. The weapon durability may be frustrating, but at the same time it leads to almost the entire rest of the game being better. You need to plan before you attack a camp with very strong enemies, you need to manage your gear and always make sure you have enough weapons. Half of the time I only attack enemies to get their weapons.
It ads several entire new layers of complexity to the gameplay.
The weapon durability is I think the most important mechanic in the game even more so than the physics system. Without it the game would be less fun as a whole experience. The game would have been way less complex and because of that worse.