RR_DNB:
I am not in the position (no crew role) to justify or debate this matter.
I would suggest to take a look at
ECAM as an example how it is presented to a crew, besides the local, aural warning and STATUS page with more information.
But if I am allowed (as technician) to comment:
UAS (ALT LAW DUE TO 3 PITOT BLOCKED) is not acc. ECAM protocol (missing preceding header) and too many characters (24 available) but more of all this can't be determined by EFCS.
EFCS don't know if the UAS is caused by PITOT, ADM or ADIRU failure, they only know FCPC's have no or conflicting ADR input.
Up to 1 minute after the event the CMC correlates this ADR disagree with the PITOT failure.
Don't think a crew will wait that long to be clearly notified.