You don't need more than one save for that. You just need it to save often. Like the new XCOM game. In Ironman Mode, it saves after every single thing you do, pretty much. So, if your game crashes (I've had that happen), then you've only missed out on like a minute of gameplay that you have to redo, because you've still got your last save.
Yah that's what I was hoping for with being able to quicksave. Without a quicksave/autosave option you have to manually save... which I rarely do. And when you do so in Trial of Iron it boots you to the main screen.