Lots of BS
Don't believe the incident, must be a wind up.
If the guy had an Israeli passport, he couldn't get into the country for his interview in the first place.
If ever such a thing happened, the only thing I can think of is that his residence visa might have been denied for maybe having an Israeli citizenship. But again, that's only extreme wild guessing.. I am very sure however that EK as a company does not care about your race, nationality and since not so long ago your gender...
MR8