Yes, I'm not surprised that she won easily, although I wouldn't have expected such a scoreline. But when playing well Kvitova is simply much better on grass with the serve and the first strike than Bouchard (and probably anybody else other than Serena and Venus in good form and maybe Lisicki at her best).
You never know if Kvitova will play well from one match to another, but when she makes a final she much more often plays at a high level than not in it.