So 79% of theses houses weren't sold?

If no, prices will likely adjust, unless those selling are not in need for the money.

If yes,

* the headline is either false because of these 79%, people re-adjusted their behaviors in order to be able to afford, which would make it a regular transaction. You can't buy without shifting your current life-style.

* only the rich could buy, further adding to inequality. Nothing can prevent that from happening but state regulation.