Very similar emergency technique was common down in the Oil Patch in Louisiana and other offshore operations......if you got caught out by the fog or banks.
The letdown was over the sea or over the swamp.....using radar, rad alt, and reduced airspeed....and if so equipped...use the auto-pilot.
In VFR only aircraft with just the basic panel....same technique in an emergency situation
Emergency technique
SAS? Everyday standard SOP.