I haven't seen the Livestream that is why I have watched the highlights and it was an aggressive move for John Riel Casimero to always fight head on a running Rigondeaux, We can see that there are many holds and getting away tactics for Guillermo Rigondeaux, but in my opinion, this is really the way Rigondeaux play, he is a counter puncher that is waiting for the pray to leap for him to strike, many will surely say that Rigondeaux style is so boring but we surely have many opinions about this, and John Riel Casimero is just one speedy fighter and durability that Rigondeaux can not read and Casimero always goes with the body that Rigondeux doesn't apply any counter, But Congrat to both fighters mostly Casimero that have shown how aggressive a Filipino can be in getting the victory.
John Riel Casimero always goes head hunting in his fight because he wanted to get a ko against Rigo in this fight. That's what he promise in the pre-fight, so he really works to score a ko but Rigo is not a willing victim. And you are right, that his is style of fighting, boring, but for him it is effective. He hit Casimero with good counter, but Casimero keeps coming even in the last round and still looking for that ko. The output though says it all, less than 40 punch in every rounds combine if I'm not mistaken.
Yes from that perspective many have seen that John Riel Casimero is the aggressor and the one that is dominating the fight but the truth is Guillermo Rigondeaux is not really running and watching the highlights I have noticed that the boring style of Rigondeaux is really his southpaw stance, and I have noticed that John Riel Casimero is really pissed off by this kind of style, well both men really did their job, I don't want to judge Rigondeaux on the way he fights but he is really fighting tactically, always looking at an opening before giving a bite, but the way Casimero fight is really impressive too, there are times that Rigondeaux catches him with his counter but the Durability of Casimero was really bothering Rigondeaux,
And yes when the Decision was announced Guillermo Rigondeaux thought that he won the fight, I am not biased here I am just saying what I have seen in the fight, and I have bet and in favor with John Riel Casimero, but after seeing Rigondeaux fight I have seen how tough of an opponent Casimero have fought that night.