On that note, that’s one of my many gripes with Star Wars Rebels. Every episode ends in mission accomplished with no casualties for the rebels, thus making the victories of the OT a lot less impactful.
I’d guess you’re against the show existing at all then. You can’t exactly tell a story about the gradual formation of the Rebel Alliance by showing them getting crushed and defeated at every turn. There were always going to be small victories, the events of the OT and Rogue One are just the first major victories.