That may not be as true as you think. Notice the high percentages of internalism, libertarianism, and other positions associated with dualism. (Unfortunately, the survey didn't ask flat out about dualism):
Mind: physicalism or non-physicalism?
Accept or lean toward: physicalism 526 / 931 (56.4%)
Accept or lean toward: non-physicalism 252 / 931 (27%)
Other 153 / 931 (16.4%)
Since they didn't ask about dualism directly, nor, as far as I can tell, any position that logically entails dualism, obviously there is no deductive implication here.
I'm making a probabilistic point - non-physicalism is heavily represented (more than a quarter) among the group Samd specified, and thus there are pretty good odds that at least one academic philosopher espouses the specific non-physicalist theory of dualism.
I was confused, because (not having taken any philosophy classes since 1990) I didn't recognize the term as anything but political. I thought other people might similarly be confused if they weren't familiar with the philosophical use of "libertarian".