I really thought that the rumor is not true, but with the news coming out, the rumor seemed to be coming from a legit source, and look what is happening now. Casimero will lose the opportunity to fight Butler, all the trainings and everything they did just to keep him at shape is now wasted.
Although this is all about Inoue and Donaire's thread. Still, there's sort of connection to these two and Casimero. Yes, all of those trainings, time, money and effort has been wasted.
I didn't dig the whole issue about it but I've understood that it just ended into vain and he surely don't like the result of it. You can think of it, how long you've been training well and all the sacrifices made and then he won't be the one to box?