Even if the park somehow manages to get around the 1000-person limit and separates BGW into two separate businesses, effectively, the truth is that doing it simultaneously would be a mess from a staffing and logistics perspective, which is the bigger issue here. The whole point of the limited events is that they're able to operate on a reduced staff footprint, and keep many full-time staff furloughed, which would be much harder if not impossible to do if they were running two halves of the park simultaneously.
Basically, right now the park is using the two timeslots to effectively double the daily capacity to 2000, which is already a loophole of sorts around the state's restrictions. To go any further in trying to game the system runs into the optics issue that is equally attached to suing the current restrictions, and it appears that the park is content with the profitability of this event to move forward within those restrictions.
That's an excellent point. However at a certain point they will need to start bringing back the full-time. There are two main reasons.
#1 would be to avoid a complete loss of all the expertise that they bring and the subsequent brain drain that would follow.
#2 would be that eventually they will need to begin to work on next season. There's a lot of work that needs to happen for that and most of those people aren't currently working.
It is my understanding that these events being profitable would allow them to begin bringing back some of that full time staff that has been furloughed.
I do think that if the park were to spiky the park it would only be with the approval of the governor's office. Without that I don't think that it would happen. However were it to happen, I don't think that the logistics would be as difficult as you think. Most countries currently run lately self contained for day to day operations. They only support from outside their areas needed would be things like the warehouse for food supplies and merchandise to name some big ones.