The point is:
Moses and The Ten Commandments appear in multiple prominent locations on the U.S. Supreme Court building. This is not a furtherance of religions, rather it is an acknowledgement of the foundation of our society and jurisprudence.
Until recently moving to the Oklahoma Judicial Center the Oklahoma Supreme Court was housed in the Oklahoma state capitol and, I believe, still has courtrooms in that building. Why shouldn’t the Ten Commandments be on the Capitol grounds? Does the Oklahoma court reject the foundations of our society and jurisprudence? If so, what foundations have they substituted?
If I understand your argument about the location of the Oklahoma Supreme Court, you are comparing it to the U.S. Supreme Court and saying that if they have some carvings alluding to the Ten Commandments, why can't Oklahoma do something similar? But the Oklahoma Supreme Court based their ruling only on the Constitution of Oklahoma.