Interesting that it's never mentioned that Jeff Sutherland and Ken Schwaber, the creators of SCRUM both come from the military.
In my experience SCRUM delays and systematizes everything and kills creativity. Kind of like the military.
Systematizing everything and killing creativity is an essential part of making software projects less risky for companies. One of the largest risks to many software projects is the "bus factor" risk, where one employee leaving will scupper the entire project because they were the only ones who knew how it worked. If you have large sums of money riding on the success of a project, it makes sense to invest some time in processes that can mitigate the effect of one team member leaving. It's no surprise that these processes mimic the military, armies are entirely built around the idea that anyone can die at any moment without much impact on the mission.
At the sharp end of a military I certainly see SCRUM/RAD/DSDM as analogous to the ww2 German style of pushing tactical decisions down to a lower level rather than rigid command from above ala the French.
Im sure there are ex-military people who are chill, but ive seen some insane ones running tech verticals in the past.