I also heard about those. Actually in every famous sports game or even eSports, there's actually a lot of mafia in there. They're investing to the person or team and they will do everything to win and keep their money growing. Honestly, Pacman is really the winner that's why he called as a People's Choice right?
I'm also thinking about the decision because it's unanimous, Pacman doesn't have a chance since Mayweather is a defending champion and doesn't receive any casualties during the game.