The Kyūjō incident is important. It shows just how fanatical elements of the Japanese army were. Even two atomic bombs didn’t convince them to surrender.
“It shows just how fanatical elements of the Japanese army were.”
And the fanatical fighting on Okinawa and other islands showed what we (and the Japanese) would have been up against with a land invasion. Lots of lives on both sides were saved.
I wonder how a prolonged war with Japan would have changed history. Would the Russians have invaded and taken over half of Japan? Would they have sat on the sidelines and waited until neither Japan or the USA had much fight left in them and taken on both of us?