I think I know the one you're talking about, and he wasn't bankrolling it -- it was just one of his projects through Mercatus. And they had a bunch of course content on the Great Stagnation, which was definitely relevant.
Either way, the people that came to the presentation didn't come to hear about the product he was promoting - we wanted, at least I wanted, to hear the ideas in his book. Instead we got the old switcheroo.
The conspiracist right's complex over Soros and the conspiracist left's complex over the Kochs are two sides of the same coin, with their own terrible book-length screeds to match.