I believe he needs to fight more boxers and even a rematch with Tete and beat him. That maybe put Casimero to the ranking again.
Did you mean Zolani Tete? Casimero won via TKO against him on 2019, I don't think there's much hype of boxing fans want a rematch between Casimero vs Tete. Casimero need to challenge a champion if he want to gain his popularity, right now either Casimero and Akaho are still unknown boxer out there.
I agree, a KO is a good win, or a dominating performance that will give him a mile score in UD if the fight lasted till the final round.
I doubt he can win via KO, his previous match against Guillermo Rigondeaux is really close, although he still win via split decision.
I understand that there's too many questions up in our mind that needs answer, currently, all we can do is wait for Casimero to finish his bout against Ryo Akaho and after that maybe we can get some answers to it. It seems impossible to do but Casimero in the bantamweight is already an old news because he is now entering the super-bantam, so it's pretty much better if we just forget what he did in that division because he is now starting from the bottom again.