The company who owns the land is called "Safehold".[1] Rent seeking upon rent seeking. I'm surprised UBS also didn't sell the mineral rights to a fracking concern before they sold the land.
It isn't a big deal here, and most locals support leaseholds because it allows the natives who had most of their land stolen to hold onto at least a bit of it, while still utilizing what little space they have on the islands.
On the other hand, imagine that you're a developer. You know how to build and sell, you've been in the business a long time and confident about your ability. But you don't have enough money to buy a piece of land AND build. Why wouldn't you rent land instead and then pocket the profits?