Yes. Dennis Prager seems to be saying marriage was just a very useful creation of man, that Judaism developed marriage to solve real world problems. The implication is that religion is man made—just part of the evolutionary, development process as civilizations grew.
According to scripture, marriage came from God—not man. It was part of God’s original design, i.e. Adam and Eve. Judaism didn’t create it. They received it from God.
Did Prager say that man wrote Torah? I missed that part.
Prager is not a traditionally religious Jew. He has affection for tradition and emphasizes its utilitarian qualities. A lot of religious believers will find him not to be their cup of tea, although there’s no doubt he’s a positive influence.
Perhaps Prager did not stress that enough, the G-d-given-ness of the commandments. Very fitting as we prepare to celebrate Sunday the anniversary of the giving of the Torah 3327 years ago (I think it’s the golden, or perhaps platinum anniversary.) AND of course that was only after Noah received the 7 universal laws for all mankind, moral family relations being one of them.