Makes perfect sense. I don't want to taxi to the active with the stall warning bleeping at me because the wind is playing with the sensors.
That's why every other aircraft company I'm aware of use squat (weight on wheels) switches.
For much of AF447's descent, the stall warning was inactive either because the pitots were iced, or because the airspeed really was that low. When the PF pushed the stick forward and the speed rose above 60kt the stall warning sounded.