Kitchenaid pasta for their extrusion machine is a noodle dough, with eggs and white flour generally AP or 00. This type of pasta can be dried and a dehydrator works best and can keep for a few months. This is not the fusilli that you buy dried, different product. Also because of the lack of pressure (thousands of PSI and specific humidity are required to make dried pasta) from the kitchenaid the texture and mouthfeel is quite different. If the dough is too 'wet' even though it may feel dry is a disaster waiting to happen. Personally this is just a novel jester for people that believe it can be done and kitchenaid being a company that see's a market, has obliged.
The kitchenaid dough is the same as if you were making fresh linguini for example and putting the dough into an auger that then pressing the dough out the other end is a fun experiment but it's not fusilli, it's linguini that is curly and that's a stretch and only if the humidity in the pasta is low enough to hold a shape. Making dough with actual durum wheat and water would burn out a kitchenaid mixer in short order or probably wouldn't even start.
Dried commercial pasta can never, ever be duplicated at home or even in a professional kitchen because the extruder to make it properly would be huge and worth hundreds of thousands to millions of dollars. Cheers.