An alternative reason for an erroneous AoA signal; overview including assessment of vane failures - see discussion and comments.
https://www.satcom.guru/2019/03/regu...n-systems.html
The incident report as referenced above, indicating a complex and difficult fault to identify as an internal vane failure.
Note the multiple AoA interactions resulting in several system alerts; similar to the 737. The experienced crew (same as first event) elected to abort the takeoff - see sensible AAIB assessment of the decision, because of the uncertainty of multiple alerts.
http://www.smartcockpit.com/docs/Boe...On_Takeoff.pdf