So I got these explicit directions with my wine kit. Seriously. Remember those tests in elementary school where you had to follow directions in order and you were told to read everything before you started? It is a bit like that. So simple yet so complicated all at the same time.
I read them, follow step one and get my wine happily fermenting. Then I keep reading other material. Don't add bentonite until after secondary fermentation, don't use an air lock during primary fermenting, don't stir the must! And of course my directions are the complete opposite. So maybe there's not so much mystery to this. Apparently there is more than one way to skin this cat (or ferment those grapes in this case).