We can understand Haney because that's the only way he can justify his loss. Winning the case would nullify Ryan's victory and keep Haney's record undefeated. In fact, it would create a compelling narrative that his opponent had to cheat to beat him, so his camp's actions to protect his reputation are justified.

However, a rematch is still necessary to truly settle the matter. But Haney could always refuse, as he has a valid reason to do so.