That's because it's a park and workers need to be in there third shift maintaining the park. The lights are on in all three parks at night.
My point is if enough people get annoyed at this, it can easily be turned off after a certain hour because it just doesn't need to happen whereas third shift is 100% necessary.
The lighthouse doesn't run all night anyway...maybe a couple of hours after sunsetThe light isnt that bright.
I've gotten out of studios at 9:30 - 10pm once and the light was already off