"Completely uninformed"
This article shows a classic example of people believing something is true not because they actually know it, or researched it, but because they think it ought to be true.
The phenomenon is obvious in a number of places, but the source is still a bit of a mystery.
Did someone tell Matthews this? Who? Did the idea just spring from somewhere in the back of his own head? I'd really like to know. It makes a difference.