Server load is not a great indicator of how good a game is.
Silksong is an excellent game but it's absolutely not in the same league. COE33 is a much more sophisticated game with deeper story and advanced artwork.
Silksong was 1/3 the price so they could sell many more copies, and COE33 didn't have nearly the same hype on launch. None of that makes Silksong a better game.