How much office space is built with a park and new attraction is always a battle. It doesn’t generate direct revenue so the drive is always to make it as small as possible.
It’s part of the vicious cycle that hinders investment in the first place. The project needs to pay for the relocation, so it needs to be a big enough draw to generate that revenue, which is going to cost more, so it needs to draw more.
The park is also at a bit of a capacity wall. It can’t be expanded because it hasn’t been expanded. The park cannot support another major draw.