Relation with iconoclasm

"The specific motivation for the rush of inspired destruction of Greek and Roman sculpture unleashed at the end of the 4th century, as soon as Christianity was in secure control, is revealed here: the images were inhabited by demons. As in all such destruction, the faces were especially attacked, literally "defaced."[citation needed]"
This comment is unsubstantiated and seems odd, particularily the phrase "is revealed here". Sounds like original research at best. I've never heard of any justification for this viewpoint. Surely the reason for the iconoclasm was the destruction of all traces of the previous religion? Unless proof of this can be found, I think this piece of Dan Brown-calibre historical guesswork can be removed.
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