I think you’re overestimating how strong that inventive is. There’s a lot that I’d change about the current copyright model but it’s not just rent-seeking keeping P2P from mainstream use: most people do not have high uplink capacity and congestion is a real issue. Companies like Netflix have built a consistent user experience where video plays quickly and smoothly, and the price is low enough that most people aren’t jumping for alternatives — I would bet that if you surveyed the average person the biggest copyright reform they’d want is blocking exclusivity so they could use a single service for everything.

From a business perspective, a big problem is trust and safety. Torrents were also notorious for having mislabeled content or malware, and users are not going to use a system which serves arbitrary content from their IPs, so you have challenges keeping the experience good while building a large enough peer network to provide a competitive experience.