So true.From link in OP.
"... brother Dick said...
“Don’t tell a comedian not to say a certain word. For sure they’ll do it,” he said. “The funny thing is, I look back at those things. They’re so benign, but at the time they were volatile.”
Ain't that the truth?
Controversial back then.
Now probably clean, benign enough to include their material on Sesame Street.