It’s somewhat interesting that both Axis powers (who counts Italy), not just Japan, are commonly described as suffering from overly elaborate (and unrealistic) planning as well, with an inability to speak truth to power when things were breaking down. I was reading something involving Leyte Gulf (cannot remember the exact source), which noted that the Japanese very frequently used very complex, intricate plans, where many things had to come together perfectly for the plan to work. When an element broke down, the entire scheme seemed to crumble.
It feels like similar elements are present with Germany, with the unrealistic complexity/overreaching nature of things like the Bulge (though admittedly, at that point they were pretty much knowingly just rolling the dice hoping to hit a two four times in a row in ASL terms). Likewise, the unwillingness to recognize the situation for what it was, leading to repeated ridiculous stand your ground orders (and the infamous moving of imaginary armies at the end).
Much of this may be obvious - I suppose one could argue, “Yes, it’s a dictatorship. It promotes a culture of fear of speaking up or individually questioning the status quo.”
I do wonder how much of that is victors’ history, though - perhaps a bit of justification/retaliation for the previous generations’ history that the Germans were master planning supermen, only defeated through Slavic hordes throwing inexhaustible manpower into the meatgrinder and American artillery. I imagine that stings a little, and could see an overreaction in the other direction to “the other side tried to be too clever by half, and we just punched them in the mouth real good while they were making their over-elaborate plans.”