Help or hurt who? They absolutely help Disney sell more DVC direct, that's why they put it in place. Disney believes they are selling more points at higher price than if they didn't have resale restrictions.
The idea that Riviera sales have "lagged" is a bit of a false perception. Disney very much controls the pace of sales by adjusting incentives. Riviera was indeed hurt for a while due to Covid. But Riviera is also a massive resort in terms of points, with over 6 million points to sell. I suspect the plan was always to keep it in active sales for several years.
Evidence:
https://dvcnews.com/dvc-program/fin...nd-floridian-in-dvc-direct-sales-in-july-2022
There were several months where Riviera was beating Grand Floridian when both were in active sales. Then Disney improved the incentives at Grand Floridian, and the balance switched. Grand Floridian also had a lot few points to sell -- Big Pine Key was under 2 million points.
So in the summer of 2022, when Riviera was priced about $15 less than Grand Floridian, Riviera was actually out-selling Grand Floridian.
By September, after the initial rush for Grand Floridian Big Pine Key wore off, Riviera sales were also double Grand Floridian:
https://dvcnews.com/dvc-program/fin...2022-grand-floridian-continues-downward-trend
That suggests the free market does not think Grand Floridian direct is worth $15 more than Riviera direct.
In winter 2022, Disney scaled back Riviera incentives, and made Grand Floridian cheaper than Riviera, by about $3 per point. At $3 cheaper than Riviera, Grand Floridian again started to *slightly* outsell Riviera.
So this suggests the free market does not think Riviera direct is worth $3 more than Grand Floridian direct.
Add it up?
1 -- Sales of Riviera have not "lagged" -- In fact, there were many months in head to head competition, where it was out-selling Grand Floridian.
2 -- The free market direct value of Riviera might be worth slightly less than the free market direct value of Grand Floridian. But that's true of all resorts, Grand Floridian is the flagship. We
In the end, there is no evidence that resale restrictions have hurt the direct sales of Riviera. In all likelihood, the restrictions have helped the direct sales, which is why Disney has them in place.