As his name and birthplace suggest he is a Wallon and was born in the Wallon speaking region of Liege which belongs to the French speaking community of Belgium. He speaks Wallon and French indeed and also Flemish. 
 He is a Belgian not French. It doesn't say in the profiles of cyclists from Flanders they are Flemish . 
 So Tom Boonen is a Flemish cyclist, Jan Raas a Zeelandic cyclist, Levi Heimans a North Hollandic cyclist, Servias Knaven a Limburgic cyclist??? Are you really going to implement all that?