^^^^ Judging by the glass at about the height of the top of Hearst tower in that 2nd to last photo, we are in for a real treat once the blue film is peeled away. This tower is sort of a present waiting to be unwrapped.
Considering 1WTC's uneven complexion, which seemed to have lasted for at least a year, I like the idea the of the protective film here. It will be a magical unveiling and the largest of its kind when the entire tower goes from blue to silver in probably a week's time.