> Generally here if you make a claim it's totally fair to be asked to substantiate it.

Anything is fair. It is a discussion forum. You can say whatever the hell you want. But it is equally nonsensical.

> so I'm looking to see why they think otherwise.

You looked for someone else – someone who prepared a study – to tell you why it might be otherwise. But if you want to talk to someone else, go talk to that someone else. If you want to come here, be happy with the people who are here. They might actually teach you something without having to defer to random other people.