Two things strike me. One is that the one year trial marriage contract is actually one of the forms of marriage in ancient Ireland around the 1100s! The other is that for humans the only option is a standard military wedding, but for aliens, they may have a wedding consistent with their culture. It seems to presume that all humans have a homogenous culure. It is similar to the time spent on alien spirituality and religions but none given to human religion and spirituality.