The writer was not saying that what the airline was doing was antisemitic. He was saying that the behaviour of some Jewish passengers on a plane is enough to turn other Jews into antisemites at least for the duration of the journey. I agree and now when I fly to and from Israel I try to choose a time and day when I know that at least the religious will not be travelling.
3 killed in Kashmir after Pakistani, Indian troops trade fire (AP)
from the article: Airborne anti-Semitism