Yeah, I mean, soda is different from beer in that there will always be fermentable sugars remaining in the end product, you're just relying on cold temperatures to keep the yeast dormant. With beer, we've only got excess fermentable sugars (beyond what's needed for carbonation) left if we've screwed up (bottled too soon or gotten a wild yeast). There's less margin of error with soda, it's a lot easier for a soda to become a bottle bomb than a beer.