I think they're exactly right on the developmental basis of these effects. Our thoughts are embodied because that's how we develop. Just because we learn new stuff doesn't mean it's not rooted in the old.

That's at least one clear place where the brain-as-computer metaphor breaks down. I have yet to see evidence of a neural "delete" function. The question is how robust the overwrite functions are. And so far the evidence suggests the formation of new "files" rather than tampering with, or overwriting, old ones. Based on the neuroanatomy, these basal responses are likely to arise from posterior and subcortical structures. The frontal cortex is then used to abstract away and resolve conflicts.