I think it's entirely possible that DFH dumps more beers than average due to the variety of their ingredients and the strength of the beers they brew. Look at what they've showed being dumped so far: An 18% beer and a 10% beer with some strange ingredients (including the yeast I believe - didn't they say it was a sake yeast). It's a lot easier to mess up something like that than if you're making 100,000 gallons of the exact same, or similar beers, day in and day out.