This sounds like its both good and bad, depending on which side you're on. Tracking current interest rates helps keep the market liquid, something that many "hot" markets aren't (Bay Area).
A lot of people in the Bay Area got their 30y mortgages locked in at a fantastic (low) 3.x% in the last ~5y, and would be hesitant to give that up, even if they wanted to upgrade. Combined with with property taxes that are locked to inflation, means that a homeowner has an incentive not to sell, and buyers compete for limited inventory.