As fond as I’d be of a subscription model as a user - as afraid I’m of it as a creator!
Netflix and Spotify both have a very bad reputation for paying big money to the big studios, whereas little / independent filmmakers and musicians get next to nothing for their work.
For me the Proof of Provenance concept works fine.
I don’t care about kids ripping my content (which they’ll always do - disregarding how complicated it might be) and I’m happy if honest users pay for my creations.
What would get me furious though is if somebody else would be making money with my creations - which I now can more easily fight off in court by having my PoP Licenses as evidence.