Not sure why you bring your ideology and acting like it applies to everyone. It's the same argument I had with others when talking about the Eipic store or buying games through Windows App. There is obviously an upside to every scenario but you are focusing solely on the downside. Convenience for one goes a long ways. Which reminds me of another scenario I had with some who are agianst Windows 10 or using Google, thinking the cost of convenience far outweighs the privacy issues. So to reiterate not everyone shares the same ideologies as you.
Stadia is a new service, it is not replacing others. It is a viable option to those who like the idea of instant gaming much like how Spotify is instant to hearing music. You download the app and you are ready to go. I think the biggest culrpit to all the pessimism over this new service are those who are still headstrong about ownership. That's fair, many still like collecting games or trading/lending/selling them but many of us now consume media differently than we used to. That's just the way things are and it appears those who are against conveinece over ownership are having the most difficult time.
To be fair, it's not an ideology, but an informed opinion shaped by working with companies who sought to bring cloud gaming services to market over the past 10 years. I even asked in an earlier post, "If multi point access is worth it for some, then great! Who am I to tell anyone what they should or should not do?" As for focusing on the downside, it is not in a vacuum. Of course there are positives like access to AAA games anywhere, on any device, instant play, etc.
IF the infrastructure works, the economics are good enough to sustain the model, is => my current experience, and performs
consistently well enough. The harsh realities of infrastructure, cost, and, well, physics, are the real issues. Ownership is a concern, but not insurmountable.
If someone can crack the problem, then great! However, these realtime, highly latency sensitive services will be crashing into the uncontrollable black box of the last mile, which poses significant challenges. For people like me, and many of you, troubleshooting our own networks to solve for performance issues is achievable. For the VAST majority of people, that is not the case and, when they have performance hitches, or the cloud stream impacts other things the family is doing (Netflix, Ring cameras, etc.), what then? How about multigaming households? Can you support more than one person using the service at the same time at home?
Lots of things to figure out and, even if we can solve for enough to make it all mostly work, can the economics support the model? The industry needs to move cautiously. As it stands, my opinion (which you didn't ask for but here it is anyway!) is that none of the services are
consistently reliable enough to be an adequate replacement for local execution. WE as an enthusiast community may rationalize and understand the tradeoffs but the average consumer, by and large, will not.