Understand that there is no guarantee you can get points from Disney at a previously sold out resort and thus "insisting" on it won't necessarily work. Once sold out, the only points that will be available are (a) ones that Disney gets back either because of a foreclosure or through the exercise of right of first refusal when owners try to sell or (b) Disney expands the resort and adds units. BWV, beginning a couple years ago, had an expansion when they eliminated most of the
DVC office space there and starting turning them into new rooms, making more points available. Thus new points became available that way. However, purchasers now or in the future may not find the ease of getting points there as those are mostly now going and you will need to buy the ones Disney gets back from foreclosures or ROFR and that inventory varies at any given time. You can, however, always get on a wait list for those type of points in the future.