Do we have good data that one demographic is disadvantaged and we trying build a case for societal change in or laws, norms, and customs to correct the imbalance? Awesome!
Are we trying to justify, defend, or promote one decision (marry, stay single, cohabitate) over another? In that case, I say ignore the noise. If you've met one married couple... you've met one married couple. How you'll do in your relationship depends on two things surveys can't answer: you and your partner.