I had the same question. I didn't think it was a big deal, since I figured that other people ask the question and it just never occurred to me. Then I came across the last sentence of the article:

"Some Americans, even some scholars, will argue against this view of anime. They want to think the Japanese worship America or worship whiteness and use anime to prove it. But they seem to be driven more by their own racism and nationalism than anything else."

After that kind of sentence, I really expect some evidence that someone, somewhere has this view.