Yep. The same group that was telling us back in the late 90's that it was a great idea to pour money into internet start-ups that had no profits because they had no revenue and they didn't even have a business model that ever projected profitability. But hey, BJ Klintoon and Robert Rubin were telling us that they had "overcome the business cycle" and we may never have another recession.
You confuse sock market fluctuations with business cycles and misunderstand what you quote.
It is indeed true that the business cyclicity was indeed amazingly low since 1982.