That's the problem. That your weapon pool is in this constant cycle of being drained and then restocked, only to be drained again, which you then have to restock. Over and over and over. It's not difficult, it doesn't add tension, there's no skill involved, it's just busy work.If weapons didn't break you would just pick your favorite couple and leave the other 30 to collect dust on the shelf, at least this system gives you a reason to use the all at least a little. Adding a drain to resources isn't a bad thing, considering the in the typical Zelda game you end up with a thousand rupees in your wallet and nothing to spend them on by the halfway mark. Except weapons really aren't since the game gives you so many, and they restock in the world, every bloodmoon I think.
Plenty of open-world games exist where you just have a set number of weapons in your arsenal that stay with you, or that have an economy that allows you to buy and sell and repair weapons. This all works fine, so what is the point of BotW's durability system other than to sustain its own existence?
I think BotW is one of the best games ever made, but that doesn't make the whole durability weapon nonsense any less of a hassle.I'm not really going to argue with your comparison to the traditional Zelda formula. If you judge how well BotW does strictly compared to how it adheres to the formula it's going to do very, very poorly. BotW is a huge departure from the rest of the series in pretty much every way, but it's still a good game in it's own right.