YANBU if the only impact would be for more people to be able to afford to buy or move but it doesn't work like that because things don't happen in isolation.
People who bought recently won't be able to move, or won't want to sell and put themselves in debt. We bought our first house in the mid 1990s crash from a couple who had split up and their house had dropped in value by 30% in under 2 years, leaving them each with a debt equal that was more than my annual salary at the time.
You'd have to be a special kind of sicko to get excited about people suffering that sort of misery.