First they are attacking it because they have not tried one of our local mouthwatering Sonoran Hotdogs. If they had they would not be attacking it.
But on the more serious side:
They claim that eating bacon and hot dogs increases the risk of colon cancer by .4% over a lifetime. Hardly a big risk. Especially at an age where all of us are getting a colonoscopy. In their research they asked people about their food intake over multiple years. Really, do you remember what you ate last week or the last few months? Collection of those data are unreliable. At best those data may show a correlation but not causation. In my opinion, enjoy the Sonoran Hot Dog with all the trimmings but cut down on the bread which has no nutrition.
Dr Dietmar Gann