~snip~
On the video that I posted, you can see and hear Donaire's reason and then more on why he cancelled this fight. He really take it personally, so I'm not sure if this fight can still be salvage. And I agree that the fans are mostly affected by the cancellation.
^ Oh it is canceled, I never know that this fight was canceled.
But I think that is a good decision from Donaire even though people think that this is a cowardly act. But the fact that Casimero's was overrated that possibly would have a knockout. What I think here is the Donaire and Inoue fight will be incoming and probably this was the reason for match cancellation because Donaire reserved his strength on Inoue, not on Casimero.
Donaire wants to avenge his loss and take the belt of Inoue, that's a big mission because Inoue is still undefeated until now and he has been crushing his opponent. A wise decision by Donaire to face Inoue, but he should have not accepted the fight of Casimero if he has an intention to fight Inoue soon, that's being unprofessional.