This is from a TIME article
Ethereum has brought thousands of unbanked people around the world into financial systems, allowed capital to flow unencumbered across borders, and provided the infrastructure for entrepreneurs to build all sorts of new products, from payment systems to prediction markets, digital swap meets to medical-research hubs.
I think the adjective 'unencumbered' in bold should be changed to an adverb or something of that matter to modify the verb 'flow'.
Am I wrong?