No, you cited individual officer’s opinions, some of which were not directly involved with fighting Japan. The fact that the Japanese didn’t surrender even after the first A bomb was dropped shows their judgement was based on their own understanding of military science and not the twisted ethics of Bushido as it become in fascist Japan.
It is well known that by late July, while publicly stating their intent to fight on to the last man, Japan's Supreme Council for the Direction of the War (the "Big Six") knew they were incapable of carrying on. Invasion being imminent, they entreated the "neutral" USSR to mediate peace on terms bearable to the Japanese. (All while the USSR was preparing to attack Japanese forces in Manchukuo and Korea per the promises they had secretly made to the US at Yalta.)
All the "what if's" have been hotly debated from that day to this, and will continue to be debated. The fact is that by choosing weapons of indiscriminate mass destruction of civilians, the Allies in fact intended indiscriminate mass destruction of civilians. There's no other non-hocus-pocus way to determine intent.
That intent --- to go after the civilians --- is, as Admiral William Leahy said, “barbarous” and a violation of 'every Christian ethic I have ever heard of and all of the known laws of war.'"