I get that the producers caved in to pressure from the religious community and explored non scientific and long ago refuted explanations of how life began and evolved, but HELLO this WAS a science show last time I checked. Things like "intelligent" design and irreducible complexity are desperate attempts by people who still promote bronze age fairy tales as fact to make irrefutable scientific findings fit into their obsolete flat Earth world view.
Science explains religion far better than religion explains or even understands science. Religion gives us false hope, superstition, and kids dying of prayer. Science gave us the computer, cures for diseases for which prayer was having no effect and a plausible explanation of how life on are planet evolved.