profundaster
noun
Something that appears to convey great knowledge or deep insight to the inexperienced, but appears flawed or ill-conceived to the experienced.
Re-reading the books she’d loved as a child, Abigail was pleased at how many held up and were still enjoyable and held good lessons even for an adult. But some were clearly profundasters, much less impressive now that she had more perspective and could see how simplistic or one-sided they were.