I don't see how this relates to the military at all.
I thought it was self explanatory but let me rephrase it.
In the military and in medicine (you know, where people actually care about learning from their past mistakes), they don't just say, "That happened 5 months ago and we had a bad outcome. Let's just ignore what happened and not talk about it."
They study past mistakes in order to learn from them and not repeat that type of mistake in the future.
... that's not going to change the fact that she lost. It's old news. She's ancient history. That's what I'm saying.
Ancient history can be very informative. As my namesake wrote at the beginning of his Universal History:
"I have recorded these events in the hope that the reader may profit from them, for there are two ways by which all men may reform themselves, either by learning from their own errors or from those of others; the former makes a more striking demonstration, the latter a less painful one." ...... Polybius (200-118 B.C.), Universal History, Book I, Chapter 35
As I pointed out, even after the 2008 Christine O’Donnell disaster, Sarah Palin has not yet learned the lesson about how "stupid TV shows" and "being taken seriously" are not a compatible mix.