I understand where you are coming from but look at how Disney is marketing VGF2.
VGF2 is just Studios but Disney also is advertising VGF1’s 2 and 3 bedroom villas as part of VGF2.
The new Poly building almost certainly will have Grand Villas, and some who buy there will want to stay in those. For reference, a lake view Grand Floridian Grand Villa costs 187 points per night for Spring.
The point is, there will be some who buy at the new Poly
DVC who will want a Grand Villa. I’m sure some of those will also like to try a bungalow.