For a second, I thought the Americanization[1] of fùtbol would be done gradually and no one would complain as we'd be slowly boiled. I'm glad the corrupt bastards got greedy/impatient and took a big swing.
1. Sports primarily as a business, catering to owners first, sponsors second, broadcasters third, and then lastly, fans. IMO non-profit sports organizations are the best model for fans, who I identify the most with.
The $15 billion figure is for FIFA's ENTIRE 2023-2026 revenue cycle, so not just this World Cup. But the obvious "low-hanging fruit" was making the tournamenta lot larger (104 matches instead of Qatar's 64), so a lot more tickets, hospitality sales, ads etc
Also two 3 minute hydration breaks per match, giving broadcasters additional advertising windows.
That's your "optimization".
But the only way they 10x is to start running more FIFA competitions, and that's when they encroach on UEFA's cash cows...