Lack of accuracy inherent in the engine is not an excuse to strip it even more of it.

Or else we could just play vanilla, add burning pigs and onagers. It's all unrealistic, isn't it? So the pursuit of realism is effectively futile, and EB has no reason to exist. Let's all play arcade games then.

If it's too much for the engine, then don't add it. Simple. But not adding because we cannot precisely simulate all the tactical and strategical factors in an EB battefield is silly at best.