Just because a fetus is exposed to and can taste the foods in utero doesn't necessarily mean that he or she will actually like them after birth. My daughter is a chowhound, my son is insanely picky, but both were "fed" the same diet during gestation. As I've said on these boards many times, there is a lot more to taste preference than exposure, although i'm sure that helps.
I heard that the other day in the car. I always wonder when I hear talk of restricting diets during pregnancy or breastfeeding due to a belief that garlic/spicy foods/etc. cause problems for the fetus/baby. It makes lots of sense that, as the news piece states, early regular exposure to a wide variety of flavors may increase acceptance of those flavors later on. Not fool proof but why not give it a try?