When these claims come up they don't mean that they are using quantum effects to do normal atomic and molecular things, but rather that somehow quantum effects are used in the process of "cognition" thus allowing us to believe that we are in fact more than biological machines and leave room for various magical properties we like to think we have (souls, consciousness, free will, etc).

While quantum effects have been found to aid in photosynthesis, interesting uses in cognition or otherwise are in fact extremely rare in biology. I believe photosynthesis is one of the few documented examples. Also, despite the popularity of the quantum brain idea, no one has been able to show definitive evidence of it for decades now.

TLDR yes it would be incredibly novel if this claim were proven to be true.