I don't see them that interested in that market. In order to do what you are saying, they would have to have "moderate" rooms at a lower price point. In order to make money, they would have to build it like a moderate...a large resort with lower amenities. The room sizing matters little in the scheme of things - they make the room 300 s.f. instead of 350 s.f. it doesn't change the cost much. But then they would have to offer the points at a lower rate, right? 8-14 points a nice instead 14-24 in most DVC? 20% smaller space at 40 % lower point rates? Not favorable to Disney.
But here's what occurs to me - they've already built a resort like this. SSR is basically a moderate style-resort (big, sprawling, limited amenities, not great location) yet they managed to sell that as a "Deluxe" resort simply because of the room sizes at still the Villas.
I think Disney's newest DVC model is what you are seeing right here. More studios, meaning buyers can buy less points at their outrageous up-front prices and still get the room they want. My bet is you see them expand Wilderness lodge in a similar way if the Poly is successful - a bunch of studios for the low-end buyers, bungalows for the high end buyers.
It can still appear a bargain. 150-200 points a week, $25,000-$30,000 buy-in, and leaves you $900-$1200 a week. Versus renting a room at the Poly for $500-$700 a night at $3500-$5000 a week. There's still people out there you can convince that a deal and a half.