Losing your progress because of bugs or technical problems is extremely frustrating, Galactic War NEEDS a save/load functionality. People who play single player don't want to be bothered by losing hours of progress to a freaking bug. It's 2014 for gods sake.
Save/Load during matches is on the list of things the game should get before the final launch. Always remember: You're playing an early access game. That being said, you can save GW matches between battles. While it sucks having to abandon a fight, even faction boss fights shouldn't take much longer than 30-60 minutes - so you're not wasting "hours of progress".