While I agree the park needs to add capacity for the event--I have to think there are limitations to how much they can do without it costing something in turn. Especially with how bad things got last year with the queue flow of Jurassic, and how that also in turn negatively impacted other elements such as the bar.
I have to think at a certain point, you have to kill a darling in order to make sure you stabilize things. And I think the GP would be more accomodating if it meant the park's headline coaster operates during this time.