Originally Posted by
FlightDetent
Inadvertent MAX selection through action slip or worse. Just a guess.
IIRC the original FCOM wording of MAX changed not so long ago from use for landing is not recommended to simply imply that MAX is not a landing setting at all.
Airbus FCOM is silent about selection change during roll out. On new MSNs it is simply not possible to select MAX for landing. So Airbus has ended the discussion.