Inflation helps the sorts of people who buy
DVC. Many professional-class employees got a lot more than their normal 3% raises last year, and likely will again next year. Groceries are more expensive, but these households don't spend a large percentage of their salaries on groceries to begin with. Their mortgages haven't gotten any more expensive, and in real-dollar terms have gotten cheaper.
The great mystery, which will soon be answered, is whether there's diminished demand for DVC generally, or Riviera in particular.