Of course it was slated. My brother in law would have been in the first wave. My uncle and father would have been off-shore on their ships. My grandfather was already re-assigned from a European to a Pacific theater post -- and was stopped only by the Emperor's surrender.
It is generally accepted that, had it not been for Hirohito doing the literally unprecedented, and speaking personally to the Japanese people on the radio, the war would have continued, the invasion would have occurred, and millions of people would have died.