This was not the first time SCOTUS addressed the issue and it's very unlikely that it will be the last. Nevertheless, this time around the court settled the question [at least for now] of whether or not the Constitution allows for prayer during government meetings. Long story short -- the court ruled, in a 5-4 decision, to give brief, ceremonial prayers in civic meetings their juridical blessing.
Hosannas were heard throughout the land because American Christians construed the high court ruling as a victory and, apparently, felt much less persecuted because of it. All things being theoretically equal, a few other spiritual brands felt empowered by the decision as well. One such was the Central Florida Freethought Community which resides in Florida's Brevard County.
It just so happens that the Brevard County commissioners have a long proud history of indulging in the quaint but questionable practice of invoking supernatural guidance before their meetings. To keep things democratic, commissioners take turns inviting local spiritual leaders to make up those invocations.