Look, everything counts as phil: Old science may also have counted as phil. in the days when they weren't distinct. However WD's exmaples were of contemporary developements that seem to be considered not-phil by contemporary philosophers.

certainly his stuff on actual cause is cited a lot in phil papers

Science in general is quoted quite a lot. But there is a difference between phils. discussing phil. and phils. discussing non-phil as somethign that can be philosophised about. if only in tone and presentation.