There is often this concept in gaming that if something is represented in a game that is has to be completely accurate to the real world version. For example every time a new Call of Duty game get released the gun play will play out differently than it would in real life and then someone will post on reddit that “This gun actually shoots faster than it does in game.” While this argument is true it often ignores the fact that the games overall goal is to be a competitive shooter and not a simulator. The developers of these games would rather put a real world object into the game and change it to be balanced in relation to the other objects than put an object in the game that is perfectly realistic and breaks the balance of the game. That being said sometimes the developers seem to forget this themselves and an object will get into the game that is unbalanced because it is trying to hard to be realistic. This is often seen in shotguns since all games represent shotguns as extremely close up and spread-shot weapons when realistically then can shoot pretty far, especially with a slug. In Modern Warfare 2 this was a very large complaint of shotguns. when they killed players from as far away as assault rifles players were upset.
This is just one argument that can be made for Game play Balance over Historical Accuracy.