Bro, you’re literally making the arguments SKG would accept while being “it’s asking the wrong thing”. The core of what SKG was asking is that if the company stops official support for the game the game should stay at a playable state. It’s not making any demands on how those games should stay playable. It’s even very open about what constitutes as “playable”. For example if PUBG support ended if you’d be able to start a match alone without anyone to play with that would be enough to be “playable”. Even if there’s no actual game to play as long as you could load into the world it would be enough for SKG.

A near perfect solution for SKG would be exactly your point. Games should come with community servers or whatever infrastructure (software-wise) is necessary to keep the game running. If the publisher wants to shut down their own servers that’s fine, fans would just boot up their own servers and there would be nothing to C&D for the publisher because they gave the server software as an EOL plan. But SKG didn’t explicitly demand that because corporations would instantly go “That’s too far. It’s too unreasonable of a claim to force us to give out our proprietary software.” The “how” was left deliberately open so that the gaming industry would give anything, even an inch, to preserve games and they couldn’t even give that.