I feel like sports gambling is probably fewer people spending more money. And that money is a lot easier to pry from people than someone having to physically go to a museum, theater, or concert venue.
Like if I go to a movie X number of times a year, that's obviously going to be less money than being a gambling addict spending the same amount daily or every couple of days on sports bets. Obviously the money would be better spent on going to a movie, but it's psychological engineering. So how much does this really say?
How trustworthy are the people interviewed in this? Because "an adjunct lecturer in Georgetown University’s Sports Industry Management program" does not sound like a neutral observer.