I was not talking about icing. Nor BUSS.
I was talking about the airspeed sensed being lower than the real airspeed with fixed pitot probes when the AoA is high, due to the (big) angle between aircraft axis and aircraft trajectory.
If the probe (such as MFP) aligns itself with the relative wind (AoA = 0) then the sensed airspeed is "right".
My point simply was that I feel it's not a bad idea to have that.