Oh absolutely, if they moved the consequence right before the endgame Netherbrain choice it should be 25DC to serve as an actual story consequence for 'fighting fire with fire'.
But as it is right now it only serves as a forcefully lore-contradictory punishing lecture to cheat the evil players out of their unique evil ending, therefore it is not fair at all to be so high when the good playthrough conveniently avoids ceremorphosis by destroying the Netherbrain 2 minutes earlier.
