And they hate mixed units because they want rock paper scissor micro management.
That's the worst bit.
I'm not big into the Sengoku period and have no idea how they fought IRL, but I'm a big fan of ancient, medieval and early modern warfare, and mixed units are absolutely required to portray those eras.
Ancient Persian infantry with a rank of shield-bearing spearmen in front and two ranks of archers behind.
17th century tercios with a block of pikemen surrounded by musketeers and a few swordsmen mixed in.
None of this can be portrayed with TW's system, it's very noticeable in mods set during the 30 years war. You have pike units and gun units but you can't perform proper pike and shot tactics because it's impossible to have the two formations interact with each other the way they historically did.
Same, I am not really trying to be picky about historical accuracy.
But if anyone see a game about modern army , even if it is arcade game that doesn't try to be realistic.
Having things like "General, we need to send your 1911 handgun company!" then you have a unit of 100 men who all equip handguns, that sounds silly even for arcade game isn't it?
But that is what most games done to ancient battle.
Ancient persian are famous for their combined arms, not "200 shield infantry block" + "200 archer block" they fight as one combined unit, they cover each other.
Japaanese sengoku era's common units are made of sonae
https://ja.wikipedia.org/wiki/備
Roughly few hundreds men.
They have OOB, and have spearman, archer, matchlock, slinger, cavalry all into this unit.
Each clan has their own style, but the idea is they pretty much fight like modern army squad-platoon-company-battalion formation.
And the cooperation of spear and ranged weapon is in the very basic level, not higher level like company size (100-200 men, like total war games)
There is no "cavalry trying to steal enemy archer block" type of micro management counter in this kinds of warfare.
It is not really trying to be nitpicking but even normal hollywood portray of modern warfare is less wrong than games talking about ancient warfare simply because the misconception of OOB.