I can't never tell if comments like this are genuine confusion from overly-literal people with poor language skills, trolls, FUD from manufacturers or what.
Food is complex. A healthy diet is going to be a multi-variable equation including different fats (omega-3, omega-6, omega-9, etc), proteins (9 different essential amino acids needed in varying quantities), carbohydrates (with varying insulin and other metabolic impact by chain length), vitamins, minerals, fiber (soluble & insoluble). As well as uniquely modern things like artificial colors, emulsifiers, anti-caking agents, anti-microbial preservatives, etc. And then overall calories tailored to an individuals size and level of activity.
It's too many variables to include detailed, nuanced descriptions, so we need to use terms like "ultraprocessed" as a shorthand approximation to capture the diverse set of food products which cause obesity, diabetes, GI issues, cognitive issues, etc.