To me it seems more a nod to a potential hyperbitcoinized world where much of what is priced in dollars today becomes priced in Bitcoin. When most or everything is priced in Bitcoin you will have no need to reference a fiat exchange rate you will just see a house priced at, for simplicity, 1BTC.

So if you have 1BTC you have 1BTC worth of purchasing power, which in this example will buy you a house.