The primary concern against including RubberWorm into the base game is that many of its options would be "WTF hack" to newcomers. Like, someone joins what appears to be an usual Intermediate game, and suddenly gravity is wrong, worms bounce, shots don't end the turn and all that. Would there be some sort of notification or something if any game-changing RubberWorm options are enabled, or is it now mandatory to check all RubberWorm options in every game?