Everyone in the Hidden Cloud knew the Raikage was injured, none of them were able to figure out why. Even Gyuki (8tail) didn't remember how it happens. Yet Naruto, just from hearing about it was able to deduced what happened. That, my friend, is called a strength that separates him from other people. If you simply take someone's strength away because it's not to your liking, ofc said person would lose the advantage and can't win anymore. If that's how you choose to argue, this argument is pointless. It's the equivalent to saying, if Naruto didn't fart, he would have lost to Kiba or, if Naruto didn't dig that hole, he'd have lost to Neji, or if Naruto didn't dig that hole, Shikamaru would have lost to Temari before he got the chance to surrender. Taking advantage of everything and everyone at your disposal is key tactic in winning battles, you simply cannot separate it just because you don't like it.