It's only sophistry if it is untrue which makes your statement demagogy.
Ah, but it is untrue. The Torah is to be read to the assembly (gathered together) every seven years. One of the reasons enumerated by YHWH is so that the children born in the interim can hear the words of YHWH. So the Word is meant to be understood by a child. No doubt there is milk and meat. There is a deeper understanding. But to say that the "simple" cannot interpret what YHWH has said is against the very words of YHWH.