Maybe Hyatt is so big on all-inclusive because of the money they make with the shady business of U.V.C. (=unlimited vacation club). The NYT reports (link is possibly paywalled). They interviewed 51 people how paid tens of thousands of dollars for a membership which offers few perks for that kinda money:

Lured by Luxury Vacations, They Were Stuck With Debt https://www.nytimes.com/2024/10/31/r...-android-share