Of course not, but who is claiming that this happened? I'm not sure I can think of even single person who is both (i) an intelligent design advocate and (ii) ex

Of course not, but who is claiming that this happened? I'm not sure I can think of even single person who is both (i) an intelligent design advocate and (ii) explicitly committed to a symbolic model of human cognitive capacities. This seems like a straw man. You might as well say that at no point in evolutionary history did an embryologist ever write down a plan for the eight developmental stages of a human fetus.