His point is that they keep starting from an assumption that science knows nothing relevant to the questions parapsychologists are asking, rather than starting from an assumption that known science could be used to make testable, falsifiable predictions.

But he gives no evidence that parapsychologists start from this assumption. Plenty of parapsychologists know that no force fields produced by the brain could be responsible for the effects they think they've found. Thats sort of their point actually.

There are lots of silly people in the field who think the results imply dualism of course-- but thats precisely why it would be nice to have materialists tackle the questions.