Up until about turn 70, the game is good. Feels like Attila, but not to where it's a everyone allies to fight Attilla. After Archaeon does his thing, 90% of the map either Allies, or Non-Agression, or generally likes each other. It losses the TW feel and it's more of a reaction/TD to chaos armies.
Here's a more spiteful version of the end times lore:
https://1d4chan.org/wiki/The_End_Times#Setting_the_stage
You can read the battle rules for AoS if you wish, but it's pretty bad(for a game, not lore). (Field as many miniatures as you wish, no limit, so hope the other guy doesn't have more than you...)
So unless it's just RNG, but when Chaos invaded the armies that spawned were actually quite scary with a wide variety of units such as chariots, trolls, chosen, etc. Not just your run of the mill marauders or missle cav. And when you have multiple armies of high tier units, with silver/gold experiance, it's a weeeeeee bit of a threat. So while it didn't really effect me directly, because I was somewhat far away and they had to go through my allies to get to me, but it was imminent that they would reach me, for my allies were getting swamped. Out maned and out gunned. So everyone, including myself, joining up as allies put balance back into the war. It was a back and forth of my allies having their settlements turned to ruins, some of our armies losing, and some of their armies losing. It was quite fun actually, there really was no clear winner, even though the forces of Chaos have these huge hosts of powerful units. But that is the point you are missing. If it weren't for the allegiances, people would get steamrolled. And again I'm not sure about you, but a bunch of factions have been wiped out in my game, so really it's only a handful of allies, whether they have some land and be powerful or not, that are teaming up.
https://www.rockpapershotgun.com/2016/05/19/total-war-warhammer-review/"
None of this diminishes the fact that I’ve had a wonderful time playing Total War: Warhammer and am far from finished with it. But the more I play, the more convinced I become that this is a game that makes a devil’s bargain. It feels exactly the way a Warhammer-themed Total War game should feel, and creates tons of dramatic battles and storylines over the course of each campaign. But to reliably generate all that excitement and tension, it secretly disconnects many of the strategic systems that hold good Total War games together. So do you want a good Warhammer game, or a good Total War game? Because I’m less and less convinced that you’ll find both inside Total Warhammer."
This. You can't have both really, but is that a bad thing?. In a world like
WARhammer, that is pretty much solely based off of brutal fighting and some real grim and dark shit, you bet you gun' get sum crazy, fantasy fightin'. So of course it's going to lose some of the grand scheme of a total war with less of a campaign theme, such as the economy, diplomacy, and what not. CA stated this very early on that is was going to be more battle focused. Are you gunna go out to eat and order some fish, knowing that you don't like seafood? If you don't like a large proportion of the lore really, going in knowing it was about that, and going in knowing it was gunna be filled with dick kickin' fights, why did you bother buying it? Or not do more reasearch and QA on it before buying it (even though there a plethora of sources to view even before the games release). So again. What are you getting at?
This being the first really unique total war, delving into fantasy, and it being my favorite universe, I think they did an incredible job so far in my playing of it. They are sticking true to lore and world of Warhammer with meticulous detail. And I for one cannot wait for future content.
Just hopefully it's not $7 for a unit pack 
Nerd edit: Also do any of you chunkledorfs know if the magic reserve pool reserved is shared among everyone in your army? I.E I have yet to have two magic users in an army so it would seem kind of pointless to have two or more of them in an army.
