Thi March 27, 2017, article simply states that these opinions are from Redditors and Quora users outside the United States. It was not a real survey in a statistical sense, amd being over seven years old, the article doesn’t have much value other than clickbait.
There are plenty of current youtube videos w/ Brits/Europeans trying some of these foods, and the sentiments are real - especially the Root Beer.
Things they LOVE once they try them - sausage gravy on biscuits and sweet iced tea.