Would you call out someone for coughing the wrong way?

In another example of Coronavirus hysteria, that has seen grown men and women fighting over toilet paper, this latest incident involves a heated exchange over poor coughing technique.

Woman appears to cough at man during
argument over coughing etiquette on a #Sydney train. #coronavirus #coronavirusaustralia #COVID2019 #2019nCoV pic.twitter.com/rQozZGrN0D

— Andy Park (@andy_park) March 8, 2020

A female passenger on board a Sydney Train is seen to be called out by another passenger for not covering her mouth when coughing.
The woman attempts to defend herself, saying: “I did not open my mouth when I coughed. I coughed inside my mouth”.

“That’s disgusting,” the man responded.
The woman then leans towards the man and coughs again in his direction.

Do you think this is a fair call or a huge over reaction?