Just another casual appearance of the modern house living in a very ordinary way in a tv ad.
Why not a traditional house? The subtlety of the ad would probably make it completely unnoticeable without the modern house. In this case the modern house serves to break the scene from convention, and perhaps hold your attention. I think this is how the ad leverages the modern house. Could you even see this commercial with a traditional house? Oh, what a drag, dude.