The year is 1989. Nothing has happened to America's beloved towers. I've noticed that the statue of Liberty is present in the skybox, very visible, it only stands to reason that we add the Twin Towers to the skybox.
This is for the sake of realism, and to add to the immersion of the community. It's important for the environment to reflect real life.
Now, if this server lasts another 12 years, we may have problems, but we'll figure that out then.