The example isn't quite right. I understand that you can't go far in just one tournament, but after playing well in three, you can stay at the top for a long time. And notice that Levitat's rating doesn't decrease; his position in the rating decreases because he is being overtaken. And if Kamikaze hadn't played in this tournament, his rating would have remained the same, but now it has decreased. So, it turns out that it's better not to play at all than to play a little worse than you played before. I think that's wrong.
And as Ley said, if you want to win, you have to play! If you don't play, you'll stay in the same place. And Kamikaze was actually taking a risk. Knowing Vitaly, I thought he would show a much better result! I thought it would last 5-6 days...