At at least 60 knots forward airspeed we can suppose that a A330 (if in the air) is stalled (or no more what is called "flying")
Can we agree on this ? (I suppose yes)
So .. why (under the reason that AoA vanes cannot function reliably at this speed) stop the stall warning alarm ..
I don't catch the logic of this one !
I doubt the designers ever envisioned a scenario where an aircraft "in-flight" could be traveling less than 60 knots (it's even hard to envision now knowing that it happened).
On some of the older Boeing aircraft the engine control uses airspeed as a defacto air/ground indication (using something like 120 knots or Mach 0.2, with hysteresis, for the threshold).