You left out the part in the article that said she had white mass disease and looked very pale.--Though I don't feel like that pardons DLs actions, it is relevant in explaining why DL did what it did. With all this ebola talk fear mongering all over the news, a pax was panicked by a pale sickly looking woman and feared contagion.
Ideally DL would be wise enough to not buy into these fears, but here they did not.