I don't think there's any basis to believe that selling without re-sale restrictions undercuts direct sales. The restrictions are a relatively new thing and they've never had trouble selling direct points on Disney property without restrictions.
GFV sales surely didn't suffer when they sold big pine key with no restrictions, even though everyone could just use re-sale points to stay there if they wanted.
Meanwhile every resort that they've sold with re-sale restrictions has been slow to sell. There's always been plenty of (mostly valid) excuses for Riviera sales, but with each passing disappointment (cabins,
Disneyland Tower) it's getting harder not to acknowledge the correlation. Riviera sales have mostly recovered as time goes on, but it's no longer the only test case to look at.
If/When this Poly tower sells restriction-free points like hotcakes, what do you think is the takeaway for DVD?