The real question is are you willing to give up freedom of negotiating contracts internationally or choosing to have a wedding in an exotic location for the perceived security from religious laws?
Correct me if I'm wrong here, but wouldn't an international contract still be valid regardless of what Oklahoma judicial rules said? It wouldn't be a violation of the law to enter into an international contract. It might have some bearing on where a contract dispute was heard, but if the jurisdiction was decided as Oklahoma, wouldn't it be in the best interests of an Oklahoman entering into an international contract (including the state) to have the protections of U.S. and Oklahoma law in a dispute?
As for exotic wedding locations, do you mean like Hawaii? lol
Seriously, would it be so bad to come back to OK and get a justice of the peace wedding to back up the international wedding certificate? That is if this SQ invalidated intenational marriage certificates (which I haven't seen proof of yet). You could still show the international certificate to non-state entities.
This is just me playing devil's advocate because I think this particullar SQ is a waste of time. I just don't see the boogeyman that you and JB see in it.