Because it’s shorter, and the surrounding palms are taller and more in the sun? Someone up the thread posted a photo of Mar A Lago from the air showing a line of tall palm trees and one shorter palm tree. The shorter one looks like the tree in this photo.
Looks very different from the others. Might be a phony palm tree. Some sort of signal tower? Guantanamo?
Those Royal Palms are expensive.
Someone already said
Royal Flush Palm!