Very true, but I don't see how they could have done it differently. The issue, ostensibly, would be that you have only the VGF1 units available to book, but are selling additional points that can also be used there at 11 months (if you load VGF2 with 2021 UY points). With VGF1 sold out and therefore balancing out (hypothetically VGF1 requiring 1million points to fully book with 1 million points sold), you'd be adding, at least initially, several hundred thousand points also free to book at VGF1 immediately since they would be within their 2021 UY (same association) creating an imbalance.
Granted,
DVC may hold some points (beyond their legally required 2% stake), so VGF1 is never really "sold out", but really how many points would they have for wriggle room? The booking capacity just wouldn't be there to absorb the influx of new points before VGF2 units came online.
Until VGF2 was online with villas to book, you could potentially have 1.2 million (or whatever the number might be) combined VGF1 and VGF2 11-month points trying to book strictly VGF1 rooms that equal 1 million points when fully booked. It would be like selling 300 seats on a 250 seat plane.
Definitely not great for the metrics, but unavoidable.