It would be interesting to know what the airspeed discrepancy was . I personally would have done a quick cross check against the standby ASI and used that as ref to disregard the faulty system
However a decision had to be made in seconds so until more facts are known you cannot fault the decision to abort, however I would not taxi the aircraft to a bay at the terminal following a high speed abort .
as for the report that the chief purser elected to call for an emergency evacuation without consulting with the captain , that totally blows my mind . We shall see in time if that is what actually happened
great CRM failure for future courses if this is the case
plus a new sim training module