There's a voice note going around that while waiting on the tarmac the frum passengers refused to sit down, they were assured they were going back to the gate and the pilot tricked them and took of instead.. (not quite sure how no one realized).. as well as there's a video of them in a hotel in Athens.. my guess is that because of the medical emergency they don't need to transfer to isra air.. not that the frum passengers are on the flight..