No need to take it personally. Just an observation. Even the site you reference, just says that water-fowl carry the disease from watershed to watershed, but nowhere on their site do they reference a single study to support the claim. Their two main references for information on whirling disease are actually not available any more. They take you to placeholder ad sites now. (To me that says quite a bit about the site that you referenced as being more politically driven than science based.)

Like you, I'm not one to drink the kool-aid. I prefer to see the data behind a claim, whether it be lead gear, or transport of diseases.

Paul