I'm sorry, but this seems to be a distraction. The groundspeed is an irrelevance in keeping the aircraft in the air and not stalling.
Certainly on short finals, it is the 'picture' and how it changes that has to be monitored. On finals you have to monitor the picture and the airspeed. To switch to read the digital output on a GPS would seem to be dangerous. I was always taught that once at base, don't look into the cockpit except for quick checks on airspeed.
There are lots of other signals to indicate wind direction, drift and ground-speed - such as smoke from chimneys when approaching the destination - which would help in planning your arrival
Add to that a decent circuit and, if necessary a go-around, I see no need to even switch the GPS on.
Having flown at Camphill and Nympsfield you are taught to recognise what will happen in a strong wind, and adjust your circuit accordingly. I can't believe anyone teaches the use of GPS groundspeed. Wasn't it quoted as a possible cause of the crash at Blackbushe?