save-scumming isn't so bad. It's a game, not real life, so whatever you enjoy most is perfectly fine. I prefer Ironman style myself, though. It makes my decision-making feel more meaningful when the penalty is great over a long campaign.
That being said, save-scumming is only going to get you so far. It is a fact of this game that usually the mistakes that you made hours ago are what caused you to lose, not some cheap tactic that you could have avoided if only there was an interface improvement. I guess raid starships would fall into that category, and in that instance I would consider doing a reload, because that's usually the result of an interface misunderstanding more than an intellectual mistake.