I think the point is that starting over will just create a new equally broken system. So then we'll have two broken systems. Humanity could've instead used all

I think the point is that starting over will just create a new equally broken system. So then we'll have two broken systems. Humanity could've instead used all that time/effort/capital to continue improving on traditional finance as we have been doing over the past century. The current financial system becomes more robust every time a black swan event like 2008 occurs.