@kennethamy,
The results may be skewed by the predominance of Americans polled. The individuals reponsible admit, moreover, "We considered incorporating questions drawn from non-analytic traditions, but it proved difficult to find questions that would be accessible enough to a predominantly analytic audience. So we decided to explicitly orient the survey toward analytic philosophy, which is the tradition within which our own expertise lies."
Still, it is what it is, and represents the thinking of those who responded.