He had the right to exercise it right away but we will know it soon if Kambosos and his camp definitely did the right thing for rushing the fight, we didn't know exactly what happened behind the scenes but it looks to me that Kambosos was a having a hard time accepting the reality and that he was overwhelmed by Haney.
I agree, he needs another fresh strategy to overcome Haney's technicalities because if he and his camp cannot find that something that might lead him the win he needed then I'm afraid that Kambosos is just adding the embarrassment he experienced earlier this year.
I really hope that this is more than sour grapes coming from Kambosos and there was in fact something that affected his performance in his fight against Haney, if that is the case then we may get to see a more interesting fight than the one that we watched previously, but even then I do not think Kambosos will have too much of a chance to get the win, however if those are nothing but excuses coming from Kambosos then the upcoming fight will not be really that interesting to watch.
When someone losses, there is almost the element of sour graping in them and think that they know how to avenge their defeat in the rematch. But it terms out to be not true, just like in Joshua vs Usyk.
And there will always be excuses if boxer is defeated, but let's see how George will responds in this rematch and I imagine that this won't be any shortage of trash talking just like in their first fight. But the thing is now Haney has the bragging rights and no matter what George says, it's going to bite him in the ass.
George can talk whatever he wants, but we will not forget how he was dominated in the first fight, therefore, for him to reclaim his name, he needs to fight well and beat Haney which surely is not an easy thing to do. I doubt that the skills of George would be enough to beat Haney, but let's give him a chance as this could be his last fight if he fails.