Perhaps he's referencing to their post in response to Mint's acquisition [1]. I had the same response, although I don't use either service enough to have much validity behind my opinion: Wufoo seems to have been better executed than SurveyMonkey, at least from an UI perspective. That said, there's obviously more to this business than simply executing well.
Jason Fried's comments on the Mint acquisition could be summarized as dissapointment over Mint "selling out". That is, they were on a good trajectory to take out an incumbent institution, and instead of carrying that through, they took a payday and let the incumbent off the hook.
The situation with SurveyMonkey and Wufoo couldn't be more different. Neither is analogous to Intuit. Not by any stretch. Both companies are closer to start-up than they are institution.
1. http://37signals.com/svn/posts/1927-the-next-generation-bend...