Thanks for your reply.
In re games being designed to stretch out play time instead of fun and interesting time, I think players would pick up on this pretty quickly and simply stop playing those games. That is, players would have more control of the market because they would ultimately seek out and play games known to provide a good ROI, and those games that are the most fun & engaging for the longest periods of time would also be the most profitable games. More of a meritocracy for both players and devs.
In re Itch-team wanting to focus on current platform and not take on challenges of host cloud-based P2P services and DevOps. Yeah, I get that. I just found Itch yesterday and I was pretty amazed with the platform and business model. I couldn't help but see the potential for Itch to provide their monetization model to P2P services. I think it would be an ROI-driven win for all (except for games that aren't engaging to play).