They had them out since Tojo fell from power, which was after the fall of the Philippines.
An inability to supply their armies in China, the collapse of their industry, I could go on...
If you're going to make the "Anything to quicken surrender" argument, an afront would have quickened surrender much faster, and nobody died because of an "afront". And if we were concerned about afonts to the people under the Japanese Jackboot, maybe we shouldn't have told the Japanese Army that it had to stay in areas like China, Indonesia and Indochina, for up to a year to fight off the resistance movements created against it.
Interesting Story that.
Somewhere between 33,000 and 95,700 Military KIA, with Negligible civilian losses, and about two weeks.
Also, considering the Japanese had 10,000 men in Korea at the time, Mostly garrison troops in a less then friendly area, I'm going to say losses there, for everyone involved couldn't have been more then 15,000.