I think the thing is that game developers are more profitable with subscription and the cloud based games. So this way there is less piracy and gamers who want games also stay in the gaming. So it's more profitable that way.
I think with Stadia, the digital is going way forward and reducing the amount of download specific issues. You can just use the stadia like browser games and that should take care of the rest. I'd say that digital gaming would be lot more controlled and less piracy in future.
A all digital gaming platform is a good idea. Many regions do not have a fast broadband so downloading ans updating could be a problem. New technology is often expensive upon initial release too.