Have a look at the chart in the article ( https://www.fda.gov/files/dog_food_formulations_in_dcm_repor... ) where it says Review of the canine reports shows that most reports were for dry dog food formulations, but raw food, semi-moist food, and wet foods were also represented.

Edit to add: also, the 'more natural' diets indicated by the article are these niche pet food formulations that try to be more natural, but are just as cooked / processed as any other similar type of pet food, and potentially worse because, as others have pointed out, these niche brands lack the longitudinal research capacity of the big brands. Whereas my formulation is, as many have pointed out when they see what I'm making for my dogs, pretty much exactly what I eat: fresh raw and cooked vegetables, meats, and beans. If a fairly natural diet of raw and cooked foods kills me and my dogs, we're all fucked and might as well give up now.