Honestly I think it's mainly about the terrain of the battlefield, and then getting out of the fight and on with the rest of the game. If there's too much mental bandwidth in each battle, then you lose the thread of the main game. In my opinion.
There's also a substantial limit to how much more we can safely pack into the game at this point and actually get things tested by next month. Something along the lines of what you are describing sounds like expansion material to me unless it's actually a deficiency in the base game, if you see what I mean.