It is good we have such an esteemed expert as you who can easily tell what is figurative poetry in the Bible and what must be taken seriously.
It isn't just my opinion. The source you cite is admittedly liberal, though not all contributors are. It is a favorite of Unitarians and other such "progressive" groups because it generally reflects their bias.
One thing is certain, though: Critics of biblical literature tend to think they get to decide what is literal and figurative based on no historical context, an English translation, and a 19th Century Tubingen weltanshauung.