It'll never work because of physics, not a lack of technology. Though yes, the average home internet can't handle Cloud Gaming either way. If not due to a lack of bandwidth then because of data caps.
Cox Cable Testing a Form of ‘Fast Lane’ Internet For Gamers, which basically means ISP's are already abusing the lack of a net neutrality. Typically if someone throws money at ISP's to increase their infrastructure the ISP's will just pocket the money. What we needed is something like a Google internet to compete with cable providers, something like a Google Fiber. That sounds familiar.
But mostly because you can't solve the latency problem. You can't break the law of physics. A lot of pro cloud gaming people will say that nobody will notice the latency, but they will. They will play Sekiro Shadows Die Twice and Rage quit so often and blame it on the latency. This is not an ignoreable issue, and if you think it is then "you don't play games". I already have an issue going to my 4k TV with wireless keyboard and mouse vs my gaming PC with a Asus monitor and wired mouse and keyboard. If that latency difference will annoy me, the one from Stadia will seem broken.