Some nonsense:
in all games, all players with the 5th, 7th, 10th, 17th, and 19th ranks should have their scores set to zero...
Otherwise, it's unfair...
Of course, it's up to the judge to make such decisions, but fairness should be paramount, in my opinion...

Added after 10 minutes
The practice of setting the scores of participants who have played less than half of the games to zero has been confirmed by many tournaments, and I think creating a precedent like: "I can do whatever I want with the scores of such players" will not lead to anything good, in my opinion.