I feel a carveout for total says, say $200k USD or less, would be reasonable. Otherwise you're just conscripting indie time.
I was working on a game, but I'm not looking forward to releasing updates everytime steam changes their relay. Considering scrapping multiplayer completely.
If the indie game has multiplayer, it's much easier for everyone involved to ship a server binary like Valve has done for ages. No indie is setting up a proprietary autoscaling game server infrastructure on AWS that they will have to maintain for years and have an end-of-life plan for if the SKG initiative passes.
The only companies that SKG would inconvenience are AAA/live service studios. They have enough money to find a workable solution, or more likely, spend billions in lobbying against this initiative.