P: Allow Named People thumbnail photo to be changed

The new facial recognition in Lightroom 6/CC is well done (if sometimes amusingly quirky). One change I'd like to suggest is allowing the Named People thumbnail photo to be chosen from the list of confirmed thumbnails. Lr sometimes picks an unflattering image or one of very low quality. When I see a list of faces in the Named People list I want to see nice looking mugshots. We don't all shoot fashion models!