Iced AoA sensors send A321 into deep dive

[NigelOnDraft]

NoD.
So apart from the cost, it would be good?
But because of the cost, better not to bother?

At the extreme, maybe so. But it would be safer than this process, and with cost no object to:

1. Make pilots do 3 Sim Checks each month
2. Have 4 pilots on every flight
3. Only do 1 flight per day (for pilots), and practice the profile first in the sim
4. Carry 5T extra fuel
5. Not fly if CBs were forecast, or winds were over 20K

I could go on