Uhhhh...no.
But this is a ridiculous ruling. The presence of a cross on such a site isn't "establishing" or contributing to the legitimisation of any religion.
Some people just don't seem to grasp that religion is a part of many Americans' lives. Not mine, but most people's, and that has to be respected as part of life.
Judges our the lawmakers of the 21st century, they know better what is good for us than what we do,
they are appointed to protect us from the harm we would do to our selves if it were not for them!