Well, this really does sound good. I love soup and a good broth is simply satisfying. Creating a rich broth is a labor of love and must be a stress reducer. Perhaps we all need to get back to spending more time in the kitchen hacking our own BRODO recipes.
I tend to think this is more than just a transient food fad. The earliest restaurants were soup kitchens. I first heard about the history of the Suppenküche (soup kitchen in German) from Fabrizio Wiest who started a restaurant of the same name in San Franciso. It opened in 1993 and it's still there although under new ownership. Hearty food never goes out of style.