Is this really so surprising? A good three-quarters of the population is Christian. Lots of them are "creationists" (whatever that even means - aren't ALL Christians technically "creationists"?), and lots of them are very smart. And the two groups are not mutually exclusive, whatever your view on that is.
Really though, O'Donnell's excerpted quote is as nuanced as it gets, moreso than I would have expected. All I really see is her saying yeah well maybe it's true I guess. Nothing particularly controversial there.