Also, it has been speculated that Spence was dehydrated and weak for the fight vs. Crawford. He will not have this problem vs. Fundora because this fight will be in super welterweight. This might be a knockout victory for Errol Spence.
There's always an speculation like that after a boxer losses in a fight, why can't just we accept that it was a fair fight and Crawford was the better boxer that time. Now, it's a comeback fight of Spence and we are expecting a knockout, I'm not saying it won't happen but I really have doubt since we've see this underrated boxer Fundora on how he beat a champion in a close battle.
It will always be that argument that if someone losses a big fight, it could be either be that he has problem with weight, or their preparation is not enough. But as you have said, it was clearly that Crawford is the better fighter and he was the favorite going into this fight.
But here, since this is '54 lbs, there's no way that Spence can used that excuses, he should be man enough if he losses again and it could really put a lot of pressure on him on whether he will continue with his career or not. Or we will see if Crawford took everything from him and he might not be the same Spence that we have know prior to his first lost.