You're arguing on semantics while the question of the setup in 1419, and up to the point when everything is Burgundian, is still not settled definitely

Unless I'm mistaken, we have more or less agreed on what each province represents, being:
Friesland represents western Frisia, capital Ljouwert
Geldre represents Gelre (or Gelderland, whatever

), capital Nijmegen
Holland represents Holland proper, capital Amsterdam, and in the 15th century as well Zeeland
Zeeland represents North Brabant in the 15th century, thereafter Zeeland, capital Middelburg
Brabant represents Brabant (in the 15th century only the south), capital Brussel
Flandern represents Flandern (the Burgundian part), capital Gent (not Antwerpen because Antwerpen was actually ruled by Brabant, and Gent is the ancient residence of the Counts of Flandern)
Artois represents Hainault, capital Mons
Luxembourg represents Luxemburg, capital Luxemburg
Are we indeed agreeing on this? If so, let us stick definitely with this and proceed to the next step, figuring, on the base of what we have decided regarding what each province represents, a reasonable and realistic country setup in 1419, that I feel particularly needs to take into account the marriages between Jan of Brabant and Jacqueline and between Jan of Bavaria and Elizabeth of Görlitz, owner of Luxemburg.
One thing perhaps worth consideration - and I think already suggested by magdat - would be to let Calais represent Artois. Any opinions on that? I think, despite the strategic importance of Calais, this might be a nice idea letting the map look a lot better - covering the city of Calais and its very surroundings as a whole province seems odd to me.