You are correct that that was what Japan's position was at that time.Actually before the bombs they asked for 1) No occupation, 2) They disarm themselves and 3) no war crimes trials, and 4)keeping the emperor.
My grandfather was slated for the 2nd wave of the proposed invasion, Bombs away in my book.
But note that Japan did not ask us for this. The only thing we heard from Japan was a stony silence.
Japan only started talking to us after both atomic bombs had already been dropped.