Have you noticed the lack of searchlights? I confess that I did not, until reminded of this thread.
Nevertheless, I think the lights should have stayed there. They add a kinetic element to the nighttime atmosphere, since one of the lights is always in motion while the others stand still. And they make the place look festive. Disney parks are supposed to look different and "magical" at night, so if this is a budget cut, it's not a wise one.
Here's a look back at the lights when they were present (photos taken in 2010):
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Kevin Yee is the author of numerous independent Disney books, including the popular Walt Disney World Earbook series and Walt Disney World Hidden History.