Housing prices haven't really fallen because, like the article mentioned, people don't have to sell. Most of us have locked in low mortgage rates, we aren't looking to move/sell, so we just hunker down.
What will change is if we get into a recession where people start losing jobs. Then you will see people forced to sell their homes because they can no longer afford their mortgage, as low as it may be. Now, it won't be as bad as during the subprime debacle in '08 because rates were so much lower the last few years, but I think you are still going to see a sharp decline in housing prices next year.
I mean, I think we can all agree that the US economy is continuing to get worse. We haven't hit the bottom yet. Which means there is a reckoning coming. If you happen to be in the market to buy a home, I would wait, if you can, until 2023.