During the hard times of the war no commercial planes flew over Irak or Afghanistan. There is no problem flying through zones with low capability insurgency, it's done all the time. But given the high tension nature ofthe Ukranian conflict it just doesn't make sense to fly over that areas.

I recently flew to Moscow and our route was quite far to the north, but I would have changed it if necessary. It's a pilot's decission, but also a flight planer and Chief pilot hands to modify dangerous routes.