I'm sure that no fighter would come out and say that. Participation in throwing a fight is probably a federal offense and punishable by jail.
If he was offered money to throw a fight but declined he would not be under any federal offence. That kind of thing eventually comes out. People love to talk. you would think some rumor would at least come out.
Look at the size of those black bars when you go full screen. DAZN doesn't want the fans to see Jorge ushering Haney back to his corner after making him do the stanky leg. That was the most epic moment of the fight This content is protected
An NDA is not legally enforceable if its purpose is to conceal a crime, and fight fixing is definitely illegal.