Peace Posts and all that jazz

I must confess to being bothered by the description of the erection and dedication of a peace pole at St. Helena's First Presbyterian Church (Presbyweb, July 12, 2007).
According to http://www.worldpeace.org/ "A Peace Pole is a hand-crafted monument that displays the message and prayer 'May Peace Prevail on Earth' on each of its four or six sides, usually in different languages. There are more than 200,000 Peace Poles in 180 countries all over the world dedicated as monuments to peace. They serve as constant reminders for us to visualize and pray for world peace."
Here's my question:
In what sense are the words a prayer?
The Larger Catechism tells us (Q.178) that "Prayer is an offering up of our desires unto God, in the name of Christ, by the help of His Spirit, with confession of our sins, and thankful acknowledgement of His mercies." Question 179 adds that prayer is to be made "to Him alone, and to none other." The Heidelberg Confession adds that prayer which pleases God is that which "calls upon the one true God, who has revealed Himself to us in His Word..." (Q.117). To whom is the peace prayer addressed? The answer is far from clear.
It wouldn't matter so much if the pole was not planted in a church yard. But, since it is on Presbyterian property, shouldn't there be some way to put the prayer, or at least the pole, in the context of a Christocentric faith? It bothers me even more to learn that the dedication of the pole included readings from non-Christian scriptures.
I wonder what message we give, intentionally or otherwise, when, even on church property, we fail to offer prayer in the name of Christ, who is our Peace (Ephesians 2:14).