I disagree. oro wasnt toying with naruto.

That sword attack was definetily an atempt to kill him and, unlike oro, naruto could have been doing that all night long ( yeah he would b messed up after that but oro was already out after the last attack, remember how he looked tired).

Besides, im sure that kyuubis chakra hurts like hell but it wont kill naruto because if he dies, so does the nine tail.