Hi,
While it would be nice to go back to the days of " looking out the window and flying the plane" when we were real pilots instead of button pushers, we are required by our company to have the landing runway set so the flight data people can check that the approach is stable. Checking that we are operating to sop and safely( as well as an insurance discount)
Not having it set would show us not on horizontal and vertical profile and provoke a call from the flight data police.
This is the modern way, big brother is watching.