I do not think we can have a honest argument about free hub vs paid hub because we don't know anything about the hub besides the coaster. We don't know the level of entertainment planned, the types of dining, etc which makes it very ignorant.
For all we know if Universal decided to put high concept quality entertainment in the Hub such as a cirque show etc....how many would okay paying for park admission and another $70-80 dollar show ticket on top of that?
If the hub was free, would you be okay paying that amount?
Additionally, this resort is supposedly having three hotels. Tell me, how are you going to keep those hotel guests on campus and not spending money on I-drive or deciding due to the lack of entertainment nearby its better to just stay on I-drive or a cheaper place. There are so many factors not being thought about which may have with UC overall thought about in the park design and why they were thinking free hub access with paid lands.