seems they did the best thing as the area was quiet and she was not creating any problems for the travelling public or endangering anyone or anything....
but with an outburst like that I bet they kept a close eye on her on the subsequent flight...
VOLATILE is the word that springs to mind ...
Anger Management Courses might be helpful.
I also suspect she might have been a high value CX passenger
Any lesser mortal and I suspect the police would have been summoned to have her rapidly removed from the area......