Is it really that different from HoI3 where you need to research a superior firepower doctrine to add a 5:th brigade ( that doesn't have to add firepower at all ).
If you think of both examples like you don't have the experience to coordinate such a large formation as a single cohesive unit, then it makes a bit more sense.
I like this system better then HoI3s superior firepower doctrine way of doing it.
I hate to agree with Alex, since I prefer trolling him pointlessly in threads

, but this sums it up for me. Superior firepower in HOI3 is a clunky way of doing what this system does elegantly. Also, divisions start trying to match the template without me having to deploy extra brigades, so that's a dream come true for me.
B) We don't want a player's foreknowledge to overwrite a nation's situation, nations which were unprepared for war or who had made decisions which turned out to be flawed will have to actually fight and learn before they can resolve it.
Yep. It's like those bad ass French armored divisions I have in place in 1939 ready to fight, complete with good tanks, excellent division compositions, and the doctrines to support it. Now I won't be able to fight 1939 with division compositions I learned about in 1945.
It also prevents "Hitler has access to a time machine and is now a damn genius in military affairs" problems:
"Alright, Guderian, I want you to reorganize our panzer divisions along these lines: yada, yada, and yada."
"But mien Fuehrer, those compositions are insane! I will resign rather than implement those changes!"
"Look, Guderian, you're a smart kid. I like you. But, you magnificent bastard, I read your book. And your autobiography, which you won't write until 1952. And I read B.H. Liddell Hart's work, which you will help him with in the 50s, and I know some stuff you don't know right now. Trust me on this, buddy. In another decade, you'll agree with my assessments here."
"Ummm, are you okay, mien Fuehrer?"
"What, just because I talk about reading books from the future, you think I'm ill? Come on. Now get out of here and implement those division templates. And tell my doctor to come in and give me more meth, which I only know about because I read post-war documentation from the Gestapo."
How so? In anything you learn more from a challenge than an easy success. If you aren't tested you rarely notice weaknesses.
That's my motto, although I say it more along the lines of "You learn more from your failures than your successes, assuming you are open to learning anything in the first place." The US in WWII in particular had to learn from a few failures before really getting into the swing of things, and the Soviets did, too.