Honestly I think this is obvious to anyone who is not financially motivated to think otherwise. The biggest problem is the rich have created a system in which people's future (retirement) is basically linked to "the market" growing over their lifetime. And the hopes that if they get lucky enough with the market they can retire early (or at all). This system of course is built 100% on governments/employers not wanting…
The problem is when a civilization stops providing ways for its inhabitants to keep winning inside of it, the civilization collapses. In Western civilization, if there is no growth, how will you motivate people to keep working? The only thing left is to steal from the people who already have things.
People will always work because work needs to be done. Food, shelter, power, all of it requires active work by people. No stealing necessary. The laissez-faire rhetoric of "no growth, nobody to work" is exactly the problem mindset this economist is trying to address.