I believe that is a highly diluted analysis of the subject. I mean, technically America is still at war with North Korea.
True, the language between Israel and Iran is harsh, as reality settles in that there's vast differences ideologically and culturally. I don't think either nation-state would condone actions to remove the other. Sure, there will be petty squabbles through newspapers and press-conferences. Sure, there are agents tickling the other country.. dismantling what they can.
But, the total destruction of the other is out of the question.