Found the original articles posted by William Kelly:
This is a somewhat controversial topic:
…and cf., for the opposing perspective: Françoise Foucault : "À propos du Clos Rougeard, rendons à Charly et Antoine ce qui leur appartient" - La Revue du vin de France
Reading the opposing perspective, seems like 2015 was still pretty much the Foucault’s with Antoines’ help, but things are not 100% clear.