Oh, I agree. But in the brave new world that these people are creating there may come a time when having a marriage that isn't recognized by the state might be a distinct advantage.
The only example I can think of right now involves people on welfare - as I understand it the state actively penalizes marriage for people on benefits by cutting those benefits.
Not a great example I admit - very few of us see a future in being dependent on the state. But perhaps some of those on welfare would be glad to marry sacramentally, and keep the state out of it.
For instance: there are potentially large tax implications when state-marrying a non-citizen, and a couple of other instances.
Probably not significant enough to haunt the state with visions of lost revenue but I bet some people will avail themselves of them.
same with those where husband and wife both have substantial social security accounts
sacramental marriage for seniors