because they help establish the basic legitimacy of the game.
When Dania had the how-I-spent-my-summer-vacation group of Laconcha, Ibon, ???, their first 100 games or so illustrated why jai-alai is NOT a numbers game. If they had a post tougher than 1-2-3, and a partner who was average or worse, it was a 95% guaranteed elimination.
Not that it was reflected in the win odds or anything.