it's a bit of a straw man from your side to act like the discussion is about multiplayer

The top of this thread:

If a multiplayer-only game turns down official servers, and you can't self-host within the game, they should owe players a separate server binary they can run, or a partial refund for breaking the game. It should not be hard, especially if it's a known constraint when they develop the game.

Emphasis mine.