Did Jane Smiley go too far?

By calling George W. Bush the worst president possible, did Jane Smiley go too far?

Exerpt from her post:

Little George isn't the same guy he was in 2000, the guy described by Gail Sheehy in her Vanity Fair profile--hyper-competitive and dyslexic, prone to cheat at games, always swinging between screwing up and making up, hating criticism and disagreement, careless of others but often charming. He is no longer the guy who the Republicans thought they could control (unlike, say, McCain). The small pathologies of Bush the candidate have, thanks to the purposes of the neocons and the religious right, been enhanced and upgraded. We have a bona fide madman now, who thinks of himself in a grandiose way as single-handedly turning the tide of history.

Is this too much?