In my opinion, enthusiams below 5 does not matter anymore when you play MOTS.
If you play normal you will see a strong effect.
If you play always CT, the CT somehow maintain you team with aceptable ratings.
Your rating stay quite similar regardeless your enthusiasm.
Therefore, if you play CT against a similar team with E=5 and normal, you will have an equilibrate game.
¡Me aburro! (Homer Simpson)