I know a huge benefit to raw feeding is less poop, so maybe that's simply the case? I don't think there's really a 'rule' as to how often a dog is supposed to poop, but my 2 year old 15lb'er poops 2x a day typically, occasionally 3x if he's had extra treats, etc. But you're feeding a really great, high quality food which always = less poop!
Be happy, hehe. I noticed when I started feeding the raw patties for breakfast last week, he has pooped less. Welcome to YT!