As far as the dialog, it is known that Facebook pays PR firms to improve their image by spreading misleading stories (see Definers Public Affairs), so I think there is reason to believe that some comments here may be disingenuous.
Exactly. The authors don't seem to have any basis for their explanations, and the title should really be "neural nets more accurate... on dating website images". Still this is significant, because these are the same images a government or business could potentially access for their own ends.