I don't think the problem was so much how well the Mac version of the Game Manager worked as that Mac users didn't use to need a Game Manager. Instead they were given a key code and could unlock their own games. It was fast and simple and more secure than using a Game Manager -- and having the aggravation of the Game Manager popping up with ads as soon as you finish playing. Mac users didn't like having the same restrictions as PC users had -- especially when the old way with the key codes was faster and didn't depend on the Game Manager.