Yes, there will always be sacrifice of historical accuracy for gameplay sake, I don't think anyone is denying that. I don't think anyone wants Total War to be a historical simulation that captures all aspects of history with 100% accuracy. But despite the compromises they made with some of the earlier titles you mentioned, Rome, Shogun 2, Attila, etc. That is not at all the same as what they've done with more recent titles, that broad stroke has become exponentially broader.
The over all feel of the titles is much more "arcadey". The concern for me doesn't come from the fact that factions may not be represented 100% accurately, or that a certain character is present that wasn't in history. It's the over all feeling, the soldiers on the battlefield don't have that same weight, the impact of fatigue, terrain incline, morale seem insignificant, the sound engine is weaker and is less immersive. Jump instantly into any of the older titles versus the new, and it's pretty obvious they had a deeper connection with the historical side, despite any concessions.
The title of the entire series is 'Total War' and for the newer releases (with the exception of the WH series), the battles seem like an after thought. One of the main selling points of the original Shogun Total War and what made it different from other RTS games, was this emphasis on realistic battles, I remember the fatigue for example really affected the troops, they could barely move if they were exhausted. Now it's just cut and paste rock, paper, scissors formula sprinkled with a few formations and modifiers.
The 'historical' modes they've released more recently, that's just a token setting they implemented so they have something to say when people complain about it not being as historical. A stripped down version of the game they intended to release, with less features, units, etc. So you're effectively punishing me for wanting to play the more historically accurate mode. Maybe not so much in 3k, but definitely the case in Troy.
Also being a title that focuses on the war aspect, the Bronze Age doesn't seem like a very exciting warfare.
Anyway, my two cents, I'm bitter about this announcement
