First, they needed to accomplish, or rather better to say established, a KO win or a dominating win from this fight.
For sure they already know that and just doing their best to win. Both need some winning sequences in order to have a decent payout on their future fights.
But between them, Casimero really badly needed a win in order to regain himself.
If he loses here, no way he can meet Inoue now in the future.