On second thought, I think the JMM versus PACMAN fight would be made regardless, so fight fans need not worry. Look at this scenario:

Pacman demands 70-30 split. Pac gets 5 Million. JMM gets 2 Million. JMM and Nacho Beristain protests and makes a lot of noise but realizes in the end that 2M $ is still a lot of money. And they probably learned their lesson the first time they didn't take the Pacman rematch for $750,000 and settled for a $50,000 fight instead in Indonesia.

JMM takes the fight.

Fans are happy. Justice is served.