Don spoke the truth about what he has seen in Toronto and small towns and western towns. There was nothing wrong with a thing he said. No wonder Ron was nodding along and gave a thumbs up. He agreed because he has observed the same thing. Then his betters weighed in.
This is known as a gaff. It means telling the truth.
A gaffe is when you unintentionally say what you really think.
There is nothing unintentional about Don Cherry.