Personally, it depends on the type of game and if they're marketing it as historically accurate. For instance, if a company says the game is based on an actual event in history and we have objects like modern day cellphones in-game, I'll be turned off because the publishers deceived me. However, if it was a what-if scenario or fantasy, I couldn't care less what they want to do as long as it makes sense in the context of that gaming world.