When there is a long list of 5-star foods, it seems pretty bad. Most of the Royal Canin varieties get a 2.5, and even the 3.5 variety's first 3 ingredients are "chicken meal, brown rice, rice" -- 1 meat meal & 2 carbs, including a refined carb. Close behind it is "wheat gluten meal" -- a filler. It's not a meaty food, it's a grain-y food. DFA calls it a "average" food, which doesn't inspire much confidence in me.
With more than 15 better options (Acana, Anamaet, Blue Buffalo, Canidae, Castor & Pollux, Earthborn, Evanger's, EVO, Honest Kitchen, Innova, Merrick, Nature's Variety, Orijen, Solid Gold, Wellness, Wysong), including several Canadian brands, I can only come up with two reasons to feed the lower-quality food: (a) don't want to spend the money, and (b) not aware of the better options -- either choice seems like a red flag.
I was seeking out breeders in Canada because I thought they'd make better choices than here in America, but I haven't found it to be the case.