With this latest ruling they got into it big time as the natural outcome of this will be to only recognize state preformed unions. The ones done in a church will be up to the various religions but not recognizable by the state. IOW you'll need to do it twice.
Let the State icertify civil union contracts while the churches perform marriages. Then let the people see which churches are willing to marry same sex couples. It won’t be long until threesomes and more will be applying for civil union contracts and some churches will be performing multi-person “marriages”.