while Nap era battles may be more interesting when it comes to tactics, the uneducated masses of mainstream gamers don't care. They want shiny graphics and large epic clashes, not 1000 men standing in lines facing each other shooting for two hours.
But that is NOT how those battles were fought. The reason I showed those diagrams is because it clearly shows that a Napoleonic general had more tactical units to command which expanded his choice of tactics (and no, that is not limited to which unit shoots which unit). That is in stark contrast with the medieval general who generally commanded only 3 units (the 3 battles). I like the medieval period but not because of the tactics used during those times. From what I have read it was mostly lining up and a missile exchange which forced one side to charge. The TW series make it seem interesting with 16 to 20 units but that is something medieval commanders could only dream of.